About this Guide. From there it s a simple process of reviewing the computers, and looking for the appropriate icon.

Transcription

1 About this Guide The Aqualung Diver s Guide provides a wealth of information about the latest and greatest diving equipment available for the South African-based diver. It clearly explains how diving equipment works, how to fit equipment and what to look for when you re purchasing a new piece of diving kit. This guide is colour-coded for fast and easy reference. For example, if you re looking for information on regulators, simply flick to the orange border, and you ll find everything you need to know about choosing a regulator as well as a comprehensive list of regulators to suit any condition or budget. For a fast and efficient overview of features and benefits of some of the more complex equipment, this Guide uses a series of icons. The icons are relevant to each piece of equipment. So, for example, if you are interested in dive computers, the icon guide at the front of the computer section will explain the available features next to the icon. When you find a feature you like, for example a depth alarm, note the icon. From there it s a simple process of reviewing the computers, and looking for the appropriate icon. Or if you re after a BCD with a 3-dimensional gusset, simply make a note of the icon on the Notes Section on pages 50 and 51 (there are also small notes sections at the end of some of the chapters). Enjoy! Diving the Web Whether you re researching your next dive equipment purchase, trying to find your nearest dive store, or planning next month s dive holiday, there are a number of useful websites designed specifically for South African divers. This site offers everything about Aqua Lung & diving. If you wish to learn to dive, just click on the learn to dive icon & you ll be launched into a world of information - from where, when & how to qualify, to what equipment you need & where to find your nearest diving shop. For qualified divers, the site reveals Aqua Lung s full product range, the latest gear and competition as well as diving news & information on Suunto and Sea & Sea products. So dive into the site with us! This site is aimed at the professional and amateur scuba divers and swimmers. Run by the largest scuba wholesaler in the southern-hemisphere, the site is full of information about equipment and services for divers. Features include comprehensive gear info and pics, photographic competition, bulletin board and dive site locator. Aimed at the complete beginner, the Learn to Dive site is a unique tool designed to provide a comprehensive guide on how to get into scuba diving. Features include; information on open water dive courses, local dive-store locator, costs, FAQ s and special offers. aquasphere technisub typhoon 2

2 The World s Leading Brands Contents I was 16 years old, and I remember the very first programme I watched when we got our first TV - The Wonderful World of Jacques Cousteau. I told my family, that s what I want to do when I grow up! It has taken me 30 years to start diving and I now see what I ve been missing all these years. The first day I started my diving course, I was sitting in my diving instructor s lounge, waiting for my first class of Open Water 1, when a trainee instructor was introduced to me. He told me something I will never forget. You only start living when you are underwater. So to all of you who don t dive and read this letter, don t be like me and wait 30 years to start living! Mike (new advanced diver), East London Web and Contact Information 2-3 Regulators and Cylinders 4-11 BCD s Rebreathers 26 Gauges / Computers Masks, Snorkels and Fins Cameras Neoprene, Shell & Dry Suits Boots and Gloves 45 Torches 46 Knives 47 Bags 48 Manex Cape Town PO Box 173 Paarden Eiland 7420 Ph: (021) Fx: (021) learntodive.co.za or manex@manex.co.za Training - training@manex.co.za Service - service@manex.co.za Manex Johannesburg PO Box 1959 Northriding 2162 Ph: (011) /2/4/5 Suunto in Sports 49 Notes 50-51

3 Regulators: Everything you want to know S cuba regulators are designed to reduce the high-pressure air from the scuba cylinder to a level where the diver can breathe comfortably and safely. Jacques Cousteau and Emile Gagnan developed the original regulator, the aqua lung. It was a twin-hose system that reduced the pressure in a single stage connected to a cylinder. These days, regulators are a single-hose design and the pressure is reduced in two stages. The first stage reduces pressure from the cylinder down to near 10 bar, then the second stage delivers air on demand. (That s why the second stage is sometimes called the demand valve.) Your regulator is the most important component of your diving equipment. It delivers the air you need to breathe. It is your lifesupport system. By reading through the selection criteria here and matching the features you require in the following pages you will be able to make an informed decision. Service and Parts The single most important factor when choosing a regulator is the ability to obtain regular, professional maintenance and spares. Ultimately, this will have more effect on your regulator s overall performance than any other factor. As your diving experience grows you ll want to discover new and exciting places to dive all over the world. Your regulator must be able to be serviced wherever you will be diving, whether that s the Ponto D OPura, Ou De Kraal or Belize. With so many regulators on the market it is impossible for the average dive store to carry parts for every regulator. Under-standably, they will restrict their parts inventory to the more popular brands. Also, it s unlikely that the average regulator technician will be qualified to service every regulator on the market. The first brand almost every technician learns to service is Aqua Lung. Aqua Lung was the first regulator ever made and it is still the most popular brand in the world today. No matter where you go in the world you will find parts and service are available. That s one of the reasons why more military forces around the world choose Aqua Lung than any other brand. Performance Many people believe performance is the major criteria in the choice of a regulator. Certainly, you should choose a regulator that is appropriate for the types of diving you intend to undertake. Most modern regulators will perform adequately under normal demand at moderate depths. The deeper you dive and the harder Buyer Beware you breathe (for example, swimming against a current at depth) will result in a higher demand on your regulator. So if you were planning on diving in demanding conditions, it would pay to invest in a high-performance regulator. Generally though, when it comes to judging performance, it pays to remember that the greatest testament to a regulator is its performance under harsh environments. Australia s Far North Queensland (FNQ) has the highest concentration of dive equipment usage in the world. Gear may be used 3 to 4 times a day, 7 days a week. These professional operators recognise the need for the best equipment. They also understand that the materials used and the design are critical for their customer s ultimate safety and comfort. Aqua Lung regulators have proved to be the most popular choice in FNQ and resorts around the world including Sodwana Bay. Unlike Aqua Lung, very few companies make their own regulators. Most equipment suppliers outsource products or simply rebadge or assemble components from existing manufacturers. This makes quality control very difficult and encourages obsolescence. Suppliers will move from one manufacturer to another as either the manufacturer is unable to supply the parts, or the supplier finds a cheaper alternative. Aqua Lung is owned by Air Liquide, one of the largest gas-control companies in the world. In fact, Cousteau took his original concept to Air Liquide over 50 years ago and it was an Air Liquide engineer, Emile Gagnan, who helped develop and build the first scuba regulator. Today Aqua Lung builds more regulators than any other company in the world. Some inexperienced regulator manufacturers constantly change their regulators to try to get their design right. They change core components like the high-pressure seat without provision for retrofitting existing models. Aqua Lung created scuba diving and like every great creator they recognise that progress is made through continuous evolution. Each new Aqua Lung regulator builds on the inherent qualities of its predecessor. Aqua Lung recognises the need to maintain a parts inventory for existing models. Take for example the current Aqua Lung high-pressure seat. While incorporating the latest technology, Aqua Lung s high-pressure seat still fits models over three decades old. In fact, just 2 different high-pressure seats are required to fit any Aqua Lung regulator sold in South Africa during the last 3 decades.

4 Adjustability There are two primary adjustments available on modern regulators. One type of adjustment will alter the positive flow of air. This is often called the venturi. A regulator with an effective venturi will generally breathe well, but may free-flow when not in the diver s mouth. A venturi adjustment is very important as this allows for maximum air delivery when required with a minimum switch to prevent free-flow. Other adjustments available on some models adjust the spring tension which controls the opening effort required. This is called the cracking resistance control (see diagram above). This allows the regulator to be adjusted to minimise breathing effort under all conditions. Pneumatically Balanced Valve System Regulators 5 Venturi Adjustment Knob Cracking Resistance Control Diaphragm Aqua Lung considers the adjustable venturi so important that, while most manufacturers reserve this feature for high-end products, every Aqua Lung regulator has this control. Venturi Adjustment Switch in negative position prevents freeflow of air Environmental Seal Switch in positive position, where the venturi vane directs air into the mouth piece and ensures minimum effort even under stressful conditions. In order to keep a consistent flow of air at depth your regulator needs to sense changes in depth. This is achieved in most regulators by allowing the regulator spring chamber to flood with water. Diaphragm style regulators achieve this through limited ingress of water, typical piston designs flood completely. Unfortunately when water completely floods through your regulator it carries with it damaging contaminants that will reduce the regulator s performance and life-span. Many attempts have been made to seal regulators; one system packed the regulator with oil, while another involved a continuous release of bubbles to keep the water out. The most effective system is the patented Dry Sealed System, which is available as an option on Aqua Lung regulators and standard on most models of Aqua Lung regulators. How to measure performance Before you can establish the level of performance required, you must first understand how performance is measured. Many different tests are quoted as a bench-mark level, but the most widely regarded is the US Navy test. It involves both manned and unmanned tests of regulator performance. The US Navy set 1.4-joules effort as the maximum inhalation effort. In order to qualify for the top level, category A, the regulator needs to meet these criteria at 62m at moderately heavy work rates. In the last test performed by the US Navy only six sport diving regulators qualified as category A. Two models were from Aqua Lung, the US Divers SE2 and the US Divers Pro Diver. These same two regulators came first and second respectively in the manned tests. These models have since been improved with the advent of the Titan and Legend series from Aqua Lung. The latest regulators from Aqualung have recorded less than 0.72-joules breathing effort at 80 m. This demonstrates effortless breathing at extreme depths. The Aqualung Legend LX is widely regarded as the best per-forming regulator in the world. Internal Diaphragm External Diaphragm The patented Dry Sealed System stops water entering the regulator Important Considerations There are two other factors to consider when choosing a regulator. The first is to ensure that your regulator has sufficient ports to accommodate all attachments. You need at least one high-pressure port for your gauge and you may want a second high pressure port for a second back-up gauge. In addition to your primary second stage port you will need three more low pressure ports for an octopus, BCD hose and possibly a drysuit inflator hose. The quantity and positioning of ports allow you to configure your regulator for maximum comfort. Finally, comfort of the mouthpiece is very important, as is the ability to change a mouthpiece should it become worn or damaged. The world s best mouthpiece is the Comfo-bite.

5 High Performance Regulator Features Balanced First Stage A balanced first stage has a balancing chamber which ensures that as tank pressure drops the pressure of air to the second stage is maintained. This allows the regulator to breathe easy even at low tank pressures. Overbalanced First Stage As the diver gets deeper the air they breath is compressed and therefore more air is needed to fill the diver s lungs. This is a basic principal taught in the beginner s dive course. Your first stage must be able to sense this outside pressure in order to maintain a steady flow of air to the second stage. Internal Diaphragm External Diaphragm A major difference in the performance of a regulator is its ability to maintain a constant flow at greater depths. With an overbalanced first stage the external diaphragm is larger than the internal diaphragm to boost line pressure at depth. All modern regulators sense outside pressure and compensate for the change, however most regulators still have a considerable drop in performance on deep dives as they cannot increase pressure sufficiently to compensate for the high demands at depth. An innovation only found in the highest performing regulators is called over-balancing. The very same second diaphragm that provides an environmental seal (see previous page) is larger than the internal diaphragm. This means that as you get deeper more pressure is applied to the external diaphragm than would be applied to the smaller internal diaphragm due to the increased surface area. This actually boosts pressure at greater depths, significantly improving performance. Balanced Second Stage Many companies claim to have a balanced regulator but all they are referring to is the first stage. The world s best performing regulators also have a balanced second stage. A traditional second stage has a valve spring strong enough to hold back all the pressure from the first stage. This spring pushes against the seating mechanism to stop the air-flow until the diver breathes. When the diver breathes, the diaphragm is pulled forward against the lever, which in turn compresses the spring & pulls back the seat to allow the air to flow. A balanced second stage allows air to pass through the centre of the poppet valve to a counter-balance cylinder, which assists the spring in closing the valve. This reduces the need for a heavier valve spring, which cuts down the effort needed to compress the spring which in turn makes inhalation very easy. A balanced second stage is therefore highly desirable. Legend LX Breathing Curve Depth = 60m Breathing Rate = 63/3 l/min Supply Pressure - 725psi / 50 bar Work of Breathing = 0.72 J/l (limit = 3.0J/l) Test done in water in strict accordance to CEN test procedure Pneumatically balanced Valve System Care and Maintenance Description A regulator reduces the pressure of the compressed air held in the diving cylinder. It reduces the high pressure air to the ambient pressure which can be breathed by the user. To achieve this reduction in pressure, Aqua Lung regulators have 2 reduction stages. Aqua Lung regulators are known as demand regulators. They supply air when the user inhales through the mouthpiece or presses on the purge button. The air flow stops when the user stops inhaling or releases the purge button. A. The Second Stage * The regulator s second stage reduces the medium pressure air to ambient pressure, allowing the user to breathe normally. The second stage is held in the user s mouth by the mouthpiece. The first and second stages are connected by the MP hose. * The Legend LX second stage is fitted with an adjustable air flow control system. It allows the diver to adjust the air flow to meet his needs. The control lever is found on the left of the stage, just in line with the mechanism. It can be operated at any time, on surface or during the dive. * The Legend LX second stage is also fitted with a breathing resistance adjustment system. This allows the diver to adjust the sensitivity of the breathing to meet their requirements. This system is situated in line with the mechanism. It can be operated at any time, on surface or during the dive. To adjust breathing sensitivity, the user has only to turn the adjusting knob.

6 Using the Adjustments Regulators 7 Adjusting the breathing sensitivity. LEFT: Softer. RIGHT: HARDER B. The Hose * The Hose brings compressed air from the first stage of the regulator to the second stage. * The large internal diameter of the hose gives a higher instant air flow. It gives a 30% greater air flow than standard hoses, while remaining extremely flexible (Aqua Lung exclusive). * It s manufactured in accordance with the DEMA 104 standard (modified in 1985). It also passes the mechanical resistance & pressure tests required by the EN250 standard. * Its maximum working pressure is 30 bar. * The length of the hose is 740mm Care and Storage A. Regular Care The quality and regularity of after-dive care will ensure the maximum life of Aqua Lung regulators. To achieve this, follow the simple, but important, procedures listed below each time the equipment is used. * After each dive, the regulator should be rinsed as soon as possible in fresh water at a temperature of 20ºC+ or -5ºC to remove deposits of salt or other matter. The recommended method is to fit the regulator to a charged cylinder, to open the cylinder valve & rinse the whole assembly in fresh water at ambient temperature. Ensure that the water penetrates the compensation holes of the first stage if any, & the mouthpiece & front cover holes of the 2nd stage. During rinsing, press several times on the second stage purge button. To dry the regulator, press on the purge button while pointing the mouthpiece downward. Refit the dust cap under pressure. This could allow water to enter the MP hose. Rinsing the regulator in fresh water at the temperature listed above is more effective at removing salt or calcareous deposits than rinsing in cold water. If a charged cylinder is not available, follow the same procedure but avoid pressing the purge button or removing the dust cap during rinsing as this could allow water to enter the regulator and cause internal corrosion. When cleaning LEGEND regulators, the first stage compensation chamber cannot be rinsed as it is sealed. In this case, it is sufficient to rinse the exterior of the first stage thoroughly and to rinse the second stage. * After each day s diving, the regulator should be cleaned, checked and prepared either for the next use, or for extended storage. As soon as the regulator has been removed from the cylinder, refit the dust cap on the first stage HP (high pressure) inlet fitting. This cap is usually attached to the first stage and consequently remains attached to the regulator during the dive. Make sure it s completely dry before fitting it back on the regulator s inlet fitting. If the dust cap is fitted with an O-ring, check that it s in place. * Dry the regulator to avoid any calcareous deposits. Once dried, * The air flow is adjusted by moving the control lever. Place a finger on the end of the lever and move it within the radius indicated. When in MAX position, the air flow is directed straight towards the diver s mouth for a maximum breathing comfort during the dive. * While on the surface, the lever should be in MIN position, to avoid any tendency of free flow. To benefit from the maximum breathing performance, the user should move the lever to MAX position as soon as he begins to dive. Adjusting the Breathing Sensitivity * HARDER: To make breathing harder, turn the knob clockwise * SOFTER: To make breathing softer, turn the knob anti-clockwise (see diagram at top of page) put it into a clean box, or a bag. * If a more thorough cleaning is necessary, follow this procedure: - Rinse the equipment carefully as described above. - Using a soft nylon brush and soapy water, clean the exposed parts of the second stage. Do not soak for more than 5 minutes. - Rinse the equipment again, as described above, to remove all traces of soapy water. * Never use solvents to clean the regulator. Never use an aerosol silicone spray to lubricate it, as certain propellants attack and damage certain rubber and plastic parts. * Do not use your regulator as a carrying handle for your cylinder. Also, protect your regulator from impacts. * Do not leave your regulator attached to a cylinder when not in use. * Lightly lubricate the yoke screw with silicone grease. B. Periodic Care * Don t think your regulator is in good condition just because it hasn t been used often. Prolonged storage or storage under bad conditions can cause internal corrosion and / or deterioration of the seals. * The frequency will depend on the number of dives and the conditions of use. In any case, Aqua Lung recommends servicing at least once a year to maintain the equipment in optimum working order. In fact, certain parts should be replaced at regular intervals. Only original manufacturer s parts should be used in servicing the regulator. If it is used for rental or in very salty conditions, chlorinated pool or polluted water, it should be cleaned and serviced every 3 to 6 months. * The filter found in the first stage HP inlet fitting should be checked regularly. If this filter is coloured or corroded, the regulator should be thoroughly checked and the filter should be replaced, along with any other seals or components which are not reusable. A deposit of rust or aluminium oxide (grey powder) on the filter indicates that water has entered the cylinder, causing internal corrosion. In this case, the cylinder should be inspected by a specialist, cleaned and re-tested if necessary. Storage After rinsing, draining and drying (see Regular Care, above), lightly grease the yoke screw and store the regulator in a clean box, or a bag. Heat, light and humidity are the enemies of the regulator. For off-season storage, keep the regulator in a cool, dark place.

7 Regulators: Your Icon Guide Excellent parts and service available. The limited lifetime guarantee offered on all Aqua Lung regulators means you can purchase an Aqua Lung regulator with confidence. (See your Aqua Lung dealer for details) Nitrox Compatible - may be used with oxygen enriched air, please ensure you read manual and obtain specialist nitrox training. Integrated Adjustable Venturi System (IVS) offers the option of directing air to flow through the mouthpiece or against the diaphragm. [see pg x for more details] Comfo-bite Mouthpiece, patented by Aqua Lung, reduces jaw fatigue, and allows you to enjoy the diving experience longer. [see pg x for more details] First Stage Features Balanced First Stage ensures the air supply remains constant regardless of cylinder pressure (the intermediate pressure is always 9.5 bar above ambient.) [see pg x for more details] Overbalanced First Stage (very desirable if you want to dive deep) increases line pressure as depth increases faster than ambient pressure giving greater performance. [see pg x for more details] Technically Advanced High Pressure Seat is made of a polymer material that considerably enhances its sealing abilities, ensuring maximum durability, reliability and performance. 300 bar oxygen compatible. [see pg x for more details] Air Turbo System boosts line pressure: the air coursing through the primary port draws air from behind the diaphragm, making breathing easier during high demand situations, such as swimming against a current. Environmental Dry Seal which insulates the spring and diaphragm from the environment has several advantages it reduces corrosion of the internal mechanism and because it is highly resistant to freezing is important in cold-water diving. [see pg x for more details] Cracking Resistance Control adjusts the inhalation effort required to crack the poppet valve which releases air into the demand valve. Adjustments can be made during the dive to suit individual needs. [see pg x for more details] Plotting High Performance Regulator performance is calculated by plotting and recording the breathing cycle. In the diagram below, the inhalation line begins on the right hand and runs across the bottom to the left. The first oscillation (termed the cracking spike) represents the effort required to initially open the valve and begin air delivery. Even at this testing depth the graph shows the low Work of Breathing (WOB), indicating the diver is expending almost no energy in maintaining air flow. The cycle continues & the upper line (left to right) represents the Work Of Breathing whilst exhaling (which is greater due to increased gas density at depth). The total Work Of Breathing is calculated by measuring the total area within the loop, which in this case is 1.05 Joules per Litre. To qualify for the CE (Central European) mark, regulators must be less than 3.0 J/L at 50 metres, RMV: 62.5 (25L x 25 Breaths/min), and for the US Navy Group A (the world s most severe test standard) the regulators WOB needs to be less than 1.4 J/L at 62 metres. Pre-positioned Hose Management System guarantees optimal hose positioning angles for low-pressure and high-pressure hoses. [see pg 11 for more details] Second Stage Features Pneumatically Balanced Second Stage allows air to pass through the centre of the valve to a counter-balance cylinder, assisting the spring in closing the valve. This eliminates the need for a heavier spring, reducing the overall breathing effort. [see pg x for more details]

8 Legend LX Supreme Regulators 9 The Legend LX is a superbly engineered regulator boasting outstanding features, exceptional performance and stylish good looks Jacques Cousteau invented the very first aqualung and with it the sport of scuba diving was born. Sixty years on, the release of the Legend series represents the ultimate refinement of Cousteau s invention. The Legend LX combines exceptional ease of breathing, ease of service, reliability and stunning looks that give testament to the quality that lies beneath a masterpiece of modern engineering. Limited Lifetime Guarantee Nitrox Compatible - up to 40% only Second Stage Features First Stage Features Overbalanced First Stage Pneumatically Balanced Second Stage Air Turbo System Cracking Resistance Control Environmental Dry Seal Comfo-Bite Mouthpiece Advanced High Pressure Seat Adjustable Venturi Hose Management System A stylish gold-coloured titanium bezel, reflecting the superior quality Compact and Lightweight 2 HP & 4 LP Ports Pictured right: Over-Balanced Design Balanced First Stage - Medium pressure remains constant at 9 bar plus ambient. Legend First Stage - Medium pressure increase at a rate faster than ambient. Increases by 2 atmospheres by 60m. Helps compensate for denser air at depth. Below: Test done in water in strict accordance to CEN test procedure. Pictured left: Legend LX Breathing Curve Depth = 60m Breathing rate = 63.3 l/m Supply Pressure = 725 psi / 50 bar Work of Breathing = 0.72J/l (limit = 3.0 J/l) Legend A more affordable way to own a highly engineered regulator with abundant features, exceptional performance and reliability The Legend is the more cost-effective option if you want to possess a marvel of design and functionality. The Legend is the pedigree from which the Legend LX was spawned. Limited Lifetime Guarantee First Stage Features Overbalanced First Stage Air Turbo System Environmental Dry Seal Nitrox Compatible - up to 40% only This means that the same quality workmanship and superior features of the Legend LX are native to the Legend. The Legend boasts remarkable reliability, good serviceability and outstanding performance. Second Stage Features Pneumatically Balanced Second Stage Comfo-Bite Mouthpiece Adjustable Venturi Advanced High Pressure Seat Hose Management System 2 HP & 4 LP Ports

9 Titan LX Packed with features and offering high performance at a moderate price The Titan LX represents high-end performance at a mid-range price. In the last US Navy test the two regulators that ranked the highest, both from Aqua Lung, scored an impressive 1.4 joules effort at 62 metres. The Titan LX clocks in with the incredible result of less than 1.16 joules at the increased depth of 80 metres! The Titan LX guarantees performance at an affordable price. Limited Lifetime Guarantee First Stage Features Balanced First Stage Air Turbo System Environmental Dry Seal (optional) Advanced High Pressure Seat Hose Management System Nitrox Compatible - up to 40% only Second Stage Features Pneumatically Balanced Second Stage Comfo-Bite Mouthpiece Adjustable Venturi Compact and Lightweight 1 HP & 4 LP Ports Calypso Reliable, durable and easy to maintain, the Calypso promises great performance at a reasonable price Proving great value for money, this compact unit offers above-average performance and proven reliability making it the ideal sport diving regulator. Quoted in Scuba Diver magazine as moderately priced with outstanding performance, the Calypso is an appealing choice for the budget-conscious buyer. Outstanding value for money and why more SA Scuba schools use the Calypso in their school sets. Limited Lifetime Guarantee Nitrox Compatible - up to 40% only First Stage Features Hose Management System In-line Piston Simple, Easy Maintenance Second Stage Features Comfo-Bite Mouthpiece Adjustable Venturi Easy Breathing 1 HP & 4 LP Ports Notes

10 Mistral A new type of regulator First Stage Features Balanced First Stage Optimised MP and HP ports layout Regulators 11 This regulator is modelled on the original Mistral, created in 1943, but Aqualung has added ultra-modern apparatus to facilitate breathing performance. The first stage has a dry chamber - a new solution against freezing. The easy flow design offers improved breathing performance and the regulator is easy to strip & reassemble. Mistral is available with different connections - DIN 300 bar; Yoke 230 bar & M26 x 2 for Nitrox/02 use. Second Stage Features Comfo-Bite Mouthpiece Environmental dry seal Nitrox compatibility 40% 02 maxi with yoke or DIN version; 100% 02 with EN version Aqua Lung Octopus You may only ever be required to use an Octopus once, but when you do, it is critical that it works first time. That is why the same quality materials and workmanship go into the Aqua Lung Octopus as all other Aqua Lung products Calypso Titan Octopus Mid-sized, feature-rich alternate air source. Diver-controlled Vane Adjustment Switch (VAS) reduces sensitivity to free flow on the surface & provides maximum airflow at depth. Enlarged 2nd Stage air inlet equipped with Aqua Lung s exclusive Comfo-Bite TM mouthpiece. Equipped with 39-inch yellow hose for visibility & easy use. For Calypso and Titan. Titan Octopus Pneumatically balanced 2nd Stage High-visibility yellow cover ring and 39-inch yellow hose. Mid-size, all the Legend series superior breathing characteristics. Air balanced, ideally suited for the Legend overbalanced first stage. Diver-controlled Vane Adjustment (VAS) reduces sensitivity to free flow on the surface & provides maximum airflow at depth. Designed for use in cold water. For Titan. Legend Octopus Pneumatically balanced 2nd Stage provides consistent ease of inhalation at any tank pressure. Over-sized venturi lever is easy to reach during the dive, but is positioned to avoid entanglement. For Legend series. Versatile design Plotting High Performance Regulator performance is calculated by plotting and recording the breathing cycle. In the diagram below, the inhalation line begins on the right hand and runs across the bottom to the left. The first oscillation (termed the cracking spike) represents the effort required to initially open the valve and begin air delivery. Even at this testing depth the graph shows the low Work of Breathing (WOB), indicating the diver is expending almost no energy in maintaining air flow. The cycle continues and the upper line (left to right) represents the Work Of Breathing whilst exhaling (which is greater due to increased gas density at depth). The total Work Of Breathing is calculated by measuring the total area within the loop, which in this case is 1.05 Joules per Litre. To qualify for the CE (Central European) mark, regulators must be less than 3.0 J/L at 50 metres, RMV: 62.5 (25L x 25 Breaths/min), and for the US Navy Group A (the world s most severe test standard) the regulators WOB needs to be less than 1.4 J/L at 62 metres. ABS Octopus Designed to work properly in either right or left hand position. Ergonomic 120 degree angle between hose & mouthpiece is optimum for buddy sharing. Custom quick-release mounting clip included. Equipped with 39-inch yellow hose for visibility and easy use. For Calypso and Titan. Plotting the breathing cycle

11 BCD s: Buyer s Guide Before the advent of the BCD, divers found neutral buoyancy to be a fleeting experience; difficult to achieve and nearly impossible to maintain throughout the course of a dive. Yet it is only by becoming neutrally buoyant that a diver can experience the exhilaration of true weightlessness, and move about with total freedom underwater. How the BCD started The BCD, as we know it today, is very different from the original models that were adopted from the Mae West, a vest that was designed to be an inflatable life preserver for airplane pilots during World War II. Its purpose then, for divers who began using it, was simply to provide surface flotation at the beginning or end of a dive, or a means of self-rescue for an injured or disabled diver. Very soon, however, divers began to experiment with this new device, and found that by adding air to it underwater, they could offset the loss of buoyancy that occurred at depth when their wetsuits became more compressed. A revolution was born, but it was one that took many years to evolve into the BCD as it is designed today. With the advent of the power inflator, the BCD underwent a dramatic transformation in a short period of time. The jacket-style design was born, which integrated the BCD into a complete system that included the cylinder and regulator, and could be donned or removed all at once. In addition to providing a more comfortable harness system to hold the cylinder, modern design provides a balanced distribution of the air inside its bladder. This gives the diver the ability to swim underwater or rest on the surface in an equally comfortable and relaxed position, without struggling against buoyancy that pulls them in only one direction. SeaQuest have been pre-eminent in the design of the BCD. They invented the (Advanced Design Vest) ADV which is the basis of modern BED's. SeaQuest hold several important patents to this day. The BCD is a critical component of your safety and comfort. It has to be reliable through thousands of inflations and deflations, be able to withstand being dragged across rocks and reef, as well as being exposed to sand, salt and sun. It must be tough, reliable and a good fit. After studying the following information, you should be able to make an informed decision. The type of exposure suit you will be wearing, and your body shape are two factors you need to consider in selecting your BCD. Most importantly, however, you should consider the type of diving you will be doing and the activities you may wish to pursue. If you ll primarily be travelling to warm water destinations or casual recreational diving, you may be happiest with a more basic & streamlined model that is lightweight and easy to pack for the trip. When choosing a BCD, there are many optional features to consider, and it is important to understand the benefits before making a purchase. Choosing the Right Material The word denier is often used as a measurement of fabric quality. However, it refers to the weight of the thread, not the quality of the woven material. There are plenty of cheap 1000 denier fabrics available, but few that meet the rigid specifications that companies like SeaQuest require. The Tank Band System Here s how to thread the Tank Band System to most BED's. 1. Start with the metal bale as close to the pack frame as possible. This provides the greatest range of adjustment. 2. With the buckle fully open, thread the cylinder band up the middle slot & back down through the slot Pictured left: The Pro- Unlimited Buoyancy Control Device (BCD) closest to the metal bale (Figure 1 & 3). Pull the end to increase the tension in the band. 3. Close the buckle halfway to prevent the webbing from slipping and thread the webbing through the open slot in the end of the buckle (Figure 2 & 3). Which BCD suits you? Many BED's may look fine on the display stand but there are thousands of short cuts that can be taken in the construction of a BCD. 4

12 BCD s 13 While thread weight may be a factor in durability, it s far less important than the thickness of the urethane coating on the inside. This is used to ultrasonically weld the material to provide an airtight seal. This internal coating also helps to protect against internal salt crystal abrasion, which may damage the air D-rings cell. Beware of fabrics claiming to stretch like a balloon as this Shoulder puts lots of strain on the seams Pull Dump & the urethane coating. There are better ways to provide additional buoyancy. The quality of the exterior fabric, rather than just the weight of Adjustable the thread, should also be Chest Strap taken into consideration. Armorshield Cordura, an exclusive SeaQuest fabric, is 7 times more durable than standard nylon & 14 times more durable than cotton. It s lightweight, very resistant to punctures & tears, and quick drying. There are many brightcoloured BED's available that look great until they are put in the field. Most of these colours will fade quickly after repeated exposure to salt and sun. The dye actually provides protection from ultraviolet light. Once the fabric fades further degradation will occur more quickly. That s Weightdump System Adjustable Waist Band one reason why many of the top manufacturers have learned to restrict the use and location of bright colours. The best fabric in the world used by BCD manufacturers for colour fastness and durability is Armorshield Cordura. It uses a special system called colour lock. There are three different levels at which a fabric can be dyed. make their own inflator. They will look and feel inferior. A wellcontrolled rapid inflation can be a critical safety factor. In an emergency you want your inflator to work quickly and well. SeaQuest is famous for PowerLine Inflator (shown with Air Source) Squeeze Lock Knife 2 large Zippered pockets with Pull Cord producing the best inflator in the world. The industry standard Trimline Inflator has recently been upgraded to the Powerline Inflator. This inflator surpasses CE standards for rapid inflation. It incorporates a secure dumping mechanism and allows the low-pressure hose to be neatly clipped to the corrugated hose. The environmentally sealed high flow Schraeder valve is extremely reliable. SeaQuest also manufactures the optional Air Source for divers wishing to streamline their dive equipment. The optional Air Source combines the power inflator and octopus regulator functions. It eliminates one hose while keeping the Octopus in an easy-to-find location. High Lift At greater depths additional wetsuit compression makes the need for high lift capacity very important. It is also important to give divers added security at the surface. Extra lift capacity is critical for those who regularly train divers or may be required to assist another diver. SeaQuest uses a number of innovations, such as a 3D air cell gusset to give extra lift without squeeze. Powerline Inflator Expanding Internal Gusset Deflated Internal Gusset The cheapest way is to dye the completed fabric, but a far better way is to dye the thread. Armorshield uses thread whose raw component materials are dyed with the final colour. This is what allows SeaQuest to advertise that its BED's fade to black in other words the colour is literally locked in. When deflated, gusset lies flat & streamlined Expanded Internal Gusset Inflation Systems A good measure of a BCD is its inflation system. Take a close look at the BCD s power inflator. Many cheaply made BED's do not Optional Airsource When inflated gusset provides diver with maximum lift, BCD expands away from the back pack to minimise squeeze. (See independent air cell diagram on page??.)

13 Tank Traction System One simple yet extremely important feature is the tank traction system. This rubberised insert compresses when the tank band is initially tightened. Under load and when wet, the tank band will stretch, the traction system expands to take up the slack and ensures the tank is firmly attached to the BCD. Many manufacturers Tank Traction System Weight Integration System The benefit of weight integration is that it gets the weights off your hips and onto the BCD, improving comfort and buoyancy in the water. do not have a similar feature, and it is an all too common occurrence to see cylinders slip out on the surface or even worse, underwater. Releasable Weight Pouches It s one thing to make a great BCD, it s another to consistently maintain the highest quality. Quality testing costs money. It s an easy way for ordinary BCD manufacturers to cut corners. SeaQuest stands out as leader in the BCD market by sourcing a wide range of fabrics and then submitting them to extensive testing for Notes Testing a BCD suitability to the specific harsh conditions encountered while diving. In fact, SeaQuest not only tests each manufacturer s fabric but every single roll of fabric purchased and every BCD. Each testing process includes: abrasion tests, UV stability, colour fastness, salt resistance, stitching integrity and air-cell burst tests. SeaQuest invented the Quick Draw system which makes it easy to release weights and reinstall them after deployment. The best designed systems feature non-ditch pockets that hold only a small amount of weight. Combining the Sure Lock system and non-ditch pockets, SeaQuest has achieved excellent buoyancy control and trim underwater, through strategic weight distribution. A word of warning - be cautious of systems that offer optional weight pockets. The facilities to add later increase cost without benefit until you pay for the option. BCD Categories There are many different categories to suit personal preference and style of diving. The ADV Jacket air cell surrounds the diver and gives even flotation. Back Inflation generally gives high lift and freedom of movement. Women will generally prefer a BCD designed for their body shape. Your authorised dealer can aid with the selection of the right BCD for you, or check www. manex.co.za for more information.

14 BCD Load Management System The SeaQuest load management system is a patented combination of features that work in concert to deliver comfort, safety and security. While each of the features below work independently to ensure comfort, together the effect is nothing short of revolutionary. The high-end BED's have all the elements of the load management system. Independent Air Cell System In many BED's the adjustments to hold the tank securely to your back are joined to the air cell. Tightening the shoulder adjustment and cummerbund pulls the air cell tight around your body so that when you inflate the BCD it will become uncomfortable. To compensate for this it is natural to loosen the straps on the BCD. On land the tank will then hang low, placing strain on your lower back. Underwater it will flop around and on the water s surface it will ride up around your ears. The Independent Air Cell System eliminates any discomfort. A separate harness is locked into the back pack and attaches to the air cell by a system of clips and a floating lobe strap system. This allows the air cell to expand away from the harness, giving full inflation while securing the cylinder firmly without squeeze. Ask your dealer for a demonstration. Separate harness is locked into the back Pack and attaches to the air by cell straps Independent Air Cell Attachments for the Air Cell to join onto the Back Pack BCD s 15 Contour Back Pack A stable harness requires a stable platform. Small, flat back packs, particularly on larger BED's, act as a fulcrum, creating a gap between the lower back and the lower portion of the tank, putting excessive strain on the lower back. The contour pack is curved to the shape of the cylinder. SeaQuest uses 2 different sizes of a Contour Back Pack to get the best stability. From medium-large sizes and up they use an extra large back pack and an extended back pack on the other sizes. Sculptured Shoulder and Pivot Buckles The final link in the load management harness system is a combination of patented swivel buckles and sculptured shoulders. The shoulders are heavily padded for extra comfort & the sculptured insert holds the shoulders shape so the BCD is easy to don. Shoulders, where the air cell and harness meet, are contoured for excellent positioning on the body while allowing the air cell to inflate without discomfort. Patented Swivel Buckles allow Air Cell to move into the most comfortable position for the diver Contour Back Packs Sea Quest build 2 different size Back Packs to suit divers of differing heights Tank Traction System Large surface area and wings stabilise and add support The shoulders are the pivotal point where the air cell & harness meet. They are contoured for excellent positioning of the BCD & joined by a patented pivoting buckle system, which allows the air cell to move into the optimum location relative to the harness for maximum comfort without squeeze.

15

16 BCD's: Your Icon Guide BCD s 17 Armorshield Cordura, a guarantee of quality, is seven times more durable than standard nylon, 14 times more durable than cotton, lightweight, tough yet comfortable, exceptionally resistant to punctures and tears and quick drying. Its unique patented colour lock significantly reduces fading of both the thread and the finished fabric. 3-Dimensional Internal Gusset utilises a third piece of material to form the gusset that inflates to create buoyancy. When inflated, it expands away from the body rather than causing a squeeze effect around the torso. This style of gusset is far superior and much more comfortable as it allows the BCD to remain fitted snugly to the body irrespective of the level of inflation. Tank Traction System is a simple yet extremely important insert which compresses when the tank band is initially tightened. When the tank band stretches (either when wet or under load) the traction system expands to take up the slack, ensuring the tank is firmly attached to the BCD at all times. Full Weight Integration incorporates the lead weights, traditionally worn around the diver s waist, into the BCD, taking weight off the hips and greatly improving comfort. The Quick Draw and Sure Lock TM systems makes for easy removal and replacement of the weights. Multi-set Waist Band allows you to quickly and easily adjust the waistband of your BCD, depending on the type and thickness of the wetsuit or drysuit you are wearing. Depth Compensating Waist Band adjusts as the wetsuit compresses with water pressure, keeping the waistband firm without squeeze throughout the dive. Triangular Load Distribution System, exclusive to SeaQuest, redirects the cylinder s load evenly across the harness, relieving back pack pressure & making it easier to manoeuvre. LDS offers greater flexibility without sacrificing performance. Sure Lock TM Weight System is an exclusive to SeaQuest. This system is for quicker, easier and safer installation of weight pouches. Self-adjusting Lumbar Support is a patented system which conforms to the diver s lower back for improved cylinder support. Powerline Inflator is a high performance, environmentally sealed unit, with integrated hose clips for streamlining and dual valves for rapid exhaust and over-pressure relief. Pivot Buckles / Sculptured Shoulders provide 50mm (2 inch) buckles of high strength plastic and straps which follow the contours of the diver s shoulders, increasing both comfort and fit. Independent Air Cell System incorporates a separate harness locked into the back pack and attached to the air cell by clips and a floating lobe strap system. This allows the air cell to expand away from the harness offering full inflation (without squeeze) while firmly securing the cylinder. Contour Back Pack increases comfort both above the water and below the surface. It is curved to the shape of the cylinder, and creates a snug fit, ensuring that the cylinder s weight is evenly distributed over the length of the BCD and therefore the diver s back.

17 Pro Unlimited Quite simply the best BCD on the market When SeaQuest set the design criteria for the Pro Unlimited the instructions were simple take the best concepts already used and make the best BCD ever. The Pro Unlimited creates two new categories of diver those that own the Pro Unlimited and those who want to own one. Now with Surelock Weight system - see page?? for details! Armorshield Cordura Full Weight Integration 3-Dimensional Internal Gusset Multi-Set Waist Band Depth Compensating Waist Band Contour Back Pack Self Adjusting Lumbar Support Sculpted shoulders featuring the exclusive Sea Quest Buckle System Dump System including Upper right side Shoulder Pull Dump & lower right side Pull Dump Vertical adjustment Chest Strap with 2 options for Vertical Strap Position Powerline Inflator standard (Shown with Air Source) Outer bladder Armorshield Cordura for increased Wear & Fade Resistance Wenoka s Squeeze- Lock knife included Powerline Inflator Pivot Buckles / Sculptured Shoulders Independent Air Cell Tank Traction System Sure Lock TM Integrated System The Pro-Unlimited features a selfadjusting Lumbar Support & a sliding Lumbar Support for unparalleled comfort. Ask your dealer for a demonstration Releasable Weight Pouches hold 8kg each. 2 Non-ditch Pockets in the back 2kg each (removable) Remote pull dump Depth compensating waistband 2 large zippered pockets with pull cord 6 stainless steel D rings for attachment points Instrument Retractor (105cm). Squeeze Lock Knife (hose mount included). New Weight Pouch Carry Handle. Single Weight Placement System. Remote Rear Pull Dump System. 6 Stainless Steel D rings. 2 large zippered pockets with pull cord. Type of BC Fabric Weight System Waistband Back Pack Pockets PRO UNLIMITED SPECIFICATIONS Jacket, 3D Expandable Clips, D-rings 6 SS D-rings (2 large) Armorshield Cordura Dump Valves 1 Lower Back, 1 Right Shoulder Fully Integrated + 2 Non-Ditch Pockets Sizes Available S, M, ML, L, XL Depth Compensating Waistband Lift Capacity Lbs/Ltrs S=30/13, M=36/16, ML=38/17, L=51/23, Contour Pack with Traction Pad (2 sizes) XL=63/28 2 Large Zippered Colours Available Black/Blue

18 Space for one extra BC which will go here!!!! Innovative design that creates a new category of buoyancy compensator For 2004, SeaQuest has once again pushed the envelope in BC design with the creation of the Fusion BC. This innovative design (patent pending) captures the best qualities of a traditional jacket style BC and Armorshield Cordura Sure Lock TM BCD s 19 back inflation BC to crate a new category of buoyancy compensator - The Fusion! copy and pix to come Full Weight Integration 3-Dimensional Internal Gusset Pivot Multi-Set Waist Band Depth Compensating Waist Band Fusion inflation tube Contour Back Pack Self Adjusting Lumbar Support Instrument Retractor (105cm). Squeeze Lock Knife (hose mount included). New Weight Pouch Carry Handle. Single Weight Placement System. Remote Rear Pull Dump System. 6 Stainless Steel D rings. 2 large zippered pockets with pull cord. Fusion Innovative design that creates a new category of buoyancy compensator For 2004, SeaQuest has once again pushed the envelope in BC design with the creation of the Fusion BC. This innovative design (patent pending) captures the best qualities of a traditional jacket style BC and back inflation BC to crate a new category of buoyancy compensator - The Fusion! Armorshield Cordura Sure Lock TM Integrated System Full Weight Integration 3-Dimensional Internal Gusset Multi-Set Waist Band Powerline Inflator Pivot Buckles / Sculptured Shoulders Independent Air Cell Depth Compensating Waist Band Contour Back Pack Tank Traction System Fusion inflation tube Self Adjusting Lumbar Support Instrument Retractor (105cm). Squeeze Lock Knife (hose mount included). New Weight Pouch Carry Handle. Single Weight Placement System. Remote Rear Pull Dump System. 6 Stainless Steel D rings. 2 large zippered pockets with pull cord.

19 Black Diamond - Back Inflation Big Air Lift for the serious diver The Black Diamond s patented 3-dimensional air cell expands up to a massive 22 litre lift capacity, while keeping a very low-drag profile. The weight holster release system can hold up to 15kg. Two non-release weight pockets add another 4kg. Balance Armorshield Cordura Full Weight Integration 3-Dimensional Internal Gusset Multi-Set Waist Band Contour Back Pack Powerline Inflator Shown with optional air-source Extra-wide Shoulders. Excess shoulder strap Accommodation. Unlimited Waistband Adjustment. Rolled Neoprene Collar. Fold-out pocket For those who want the freedom of Back Inflation As its name implies, the Balance is a finely balanced back-inflation BCD.The patented 3-dimensional buoyancy envelope rapidly expands from very low profile to high lift. The new large contour back pack is Tank Traction System Self Adjusting Lumbar Support Pivot Buckles / Sculptured Shoulders Sure Lock TM Integrated System BLACK DIAMOND SPECIFICATIONS Type of BC Back Flotation, 3D Expandable Fabric 840 Denier Weight System Fully Integrated + 2 Side Non-Ditch Pockets Waistband Adjustable Multiset + Optional 12 Expander Back PackLarge Contour Pack with Traction Pad Pockets Drop Pocket + Fold-out Pocket + Front Pocket Clips, D-rings 6 SS D-rings, 1 Female Clip, Jon Line Dump Valves 2 Standard Lower Back Sizes Available S, M, ML, L, XL Lift Capacity Lbs/Ltrs 50lbs (22 Litres) in all sizes Colours Available Black/Black designed for greater tank stability. All up, the Balance is the best streamlined back-inflation BCD available. Armorshield Cordura Tank Traction System Full Weight Integration 3-Dimensional Internal Gusset Depth Compensating Waist Band Contour Back Pack Triangular Load Distribution System Powerline Inflator Shown with optional air-source Adjustable Air-Lock TM Waistband. Plush material around collar for added diver comfort. Adjustable Air-Lock TM Waistband buckle for quick adjusting. Pivot Buckles / Sculptured Shoulders Sure Lock TM Integrated System BALANCE SPECIFICATIONS Type of BC Back Flotation Fabric Armorshield Cordura Weight System New Sure Lock integrated Weight System Waistband Monster-Lock Depth Compensating Back PackContour pack with traction pad (2 sizes) Pockets Drop Pockets Clips, D-rings 2 SS D-rings, 2 Plastic Rings, 1 Female Clip Dump Valves 1 Standard Lower Back Sizes Available S, M, ML, L, XL Lift Capacity Lbs/Ltrs S=30/13, M=36/16, ML=36/16, L=40/18, XL=50/22 Colours Available Black/Blue

20 Pro QD Designed to be SeaQuest s No. 1 selling BCD The newly designed Pro QD+ with the new Sea Quest Sure Lock TM Weight System is the first Sea Quest BC available with this system. It continues Sea Quest s tradition of quality and innovation, but is the new choice of the serious diver. BCD s 21 Armorshield Cordura Full Weight Integration 3-Dimensional Internal Gusset Depth Compensating Waist Band Contour Back Pack Powerline Inflator Pivot Buckles / Sculptured Shoulders Tank Traction System Independent Air Cell Sure Lock TM Integrated System Non-releasable weight pockets. Sure Lock TM Integrated Weight System. 6 Stainless Steel D rings. 2 large zippered pockets with pull cord. Heavily Padded Back Pack. Type of BC Fabric Weight System ADV Jacket Armorshield Cordura Sure Lock integrated weight system handles up to 9kg of releasable weight on XS-ML, up to 14.5kg on L-XXL PRO QD+SL SPECIFICATIONS Waistband Back Pack Pockets Clips, D-rings Depth Compensating Waistband with 1.5 buckle Contour Pack with Traction Pad (2 sizes) 2 Large Zippered Pockets with pull chords Large D-rings for easy shoulder strap adjustment Wave: The most durable and widely used BCD for school use The highest quality and exceptional value While the Wave may be in the budget-price range it still offers an array of features and promises the same high performance standards as the more expensive models. It boasts a soft-covered back pack, a full compliment of metal D-rings and a right-hand shoulder dump. logo colour Armorshield Cordura Powerline Inflator Powerline Inflator WAVE SPECIFICATIONS Type of BC Fabric Waistband Back Pack Pockets Clips, D-rings Dump Valves Sizes Available Lift Capacity Lbs/Ltrs Colours Available Jacket Armorshield Cordura Standard Cummerbund Soft Contoured Back Pack 2 Large Pockets 2 Stainless Steel D-rings Right Hand Pull Dump XS, S, M, L, XL (colour coded) XS=26/11, S=29/13, M=37/16, L=41/18, XL=45/20 Black plus colour coded stitching for each size logo colour = Different BCD sizes have different colour-coded AquaLung logos to differentiate them. Especially good for school or charter businesses. Padded Back Pack. Tank location strap. Powerline Inflator. 2 stainless steel D-rings. Right hand pull-dump.

21 Malibu RDS - Back Inflation Featuring an innovative harness system. The Malibu RDS features the Aqua Lung Swivel Axis System (SAS TM ) that is concealed in the new conforming foam-moulded harness. This innovative harness system self-adjusts to provide a great fit - contoured to the diver s torso. Now with Surelock Weight system - see page?? for details! Larger D-ring shoulder strap for easier adjustment Back-mounted buoyancy Removable and adjustable chest strap Full Weight Integration 3-Dimensional Internal Gusset Twin torso adjustment straps with quick release buckles Multi-Set Waist Band Depth Compensating Waist Band Durable 420 Denier nylon material Contour Back Pack Self Adjusting Lumbar Support Zippered Pocket on the Waistband Powerline Inflator Independent Air Cell 2 large zippered pockets with pull cord. Double Adjusting Shoulder Strap. Slick Skin abrasion resistant urethane panels. Patented Rear 3D Bladder provides extra buoyancy. Conforming moulded shoulders and back pad. 2 fixed weight pockets hold up to 2kg of weight per pocket for a max of 4kg Integrated, releasable weight system holds up to 5kg of weight per pocket for a max of 9kg Type of BC Back Inflation Fabric 420 Denier Nylon Weight System Rapid Deployment Weight System Waistband Depth Compensating Neoprene Back Pack Conforming Foam Moulded Contoured Back Pack Pockets 2 Fixed Weight Pockets Latitude A simple, easy to use BC at a great price. Solid construction with durable materials make the Latitude an excellent choice for active divers. MALIBU RDS - SPECIFICATIONS Clips, D-rings Double D-ring Shoulder Strap Dump Valves Lower right pull damp on inside of the bladder Sizes Available XS, S, M, L, XL Lift Capacity Lbs/Ltrs 30/13-40/18 Colours Available Black, Black/Yellow Armorshield Cordura Independent Air Cell Type of BC Fabric Waistband Back Pack Pockets Powerline Inflator Depth Compensating Waist Band Tank Traction System Contour Back Pack Jacket Armorshield Cordura Standard Cummerbund Soft Contoured Back Pack 2 large, secure zippered Utility Pockets LATITUDE SPECIFICATIONS Clips, D-rings Dump Valves Sizes Available Lift Capacity Lbs/Ltrs Colours Available 3 Stainless Steel D-rings Upper right hand pull dump XS, S, M, ML, L, XL XS=18/8, S=25/11, M=27/12, ML=29/13, L=41/18 Blue/Tangerine Padded Back Pack. Tank location strap. Powerline Inflator. 3 stainless steel D-rings. Right side pull-dump.

22 Diva LX: Ladies Specific BCD The best purpose-built female BCD The Diva LX (Luxury Edition) provides all the features expected in a high-end buoyancy compensator: excellent fit, additional lift capacity, bigger pockets and more attachment points. However, because it was Armorshield Cordura BCD s 23 built for the female form, the patented sports bra design harness distributes the weight evenly away from pressure points. It is very stable and user friendly. Full Weight Integration Double Adjusting Shoulder Strap with thumb Levers Slick Skin Urethane Back Pack Comes standard with Powerline Inflator (Air Source optional) 3-Dimensional Internal Gusset Multi-Set Waist Band Depth Compensating Waist Band Contour Back Pack SeaQuest Patented Sports Bra & Specifically Designed Harness to Avoid Pressure Points in the Chest Area Multiple Stainless Steel D-rings Self Adjusting Lumbar Support Zippered Pocket on the Waistband Powerline Inflator Sure Lock TM Integrated System Independent Air Cell Tank Traction System 2 large zippered pockets with pull cord. Double Adjusting Shoulder Strap. Slick Skin abrasion resistant urethane panels. Patented Rear 3D Bladder provides extra buoyancy. Type of BC Fabric Weight System Waistband Back Pack Pockets Ladies Jacket with 3D Rear Bladder Armorshield Cordura Fully Integrated + 2 Non-ditch Pockets Depth Compensating w/multiset Waistband Contour Pack with Traction Pad 2 Extra Large Pockets + 2 Pockets on Tank Band BCD Accessories Deco Stop Surface Marker Buoy Features Carried by the diver and released for deco stops Height: 1.2m Volume: 16 litres Weighted lower opening Fitted with 12m of line and carried in a pocket retained by a snap hook. Easy to Access, Extra Large Pockets with Zipper Pull Cord DIVA LX SPECIFICATIONS Clips, D-rings Dump Valves Sizes Available Lift Capacity Lbs/Ltrs Colours Available Multi-set Waistband with Contoured Adjustable Clips Sea Quest Patented Weight Holster Release System, holds up to 9kg of Releasable Weights 5 SS D-rings, 1 Female Clip, 1 Hose Retainer 1 Standard Lower Back (Lg Pull Ball) XS, S, M, ML XS=29/13, S=32/14, M=38/17, ML=40/18 Black/Black, Black/Cherry D-Rings Some BC s are designed specifically with a variety of D-rings in various locations to provide the diver with the greatest number of mounting options. If you have heavy accessories, you may want to consider a BC with the ISS (Internal Support Structure) system as this will help distribute the load of those accessories.

23 Libra: Ladies Specific BCD Ladies Special - with back inflation. The Libra was specifically designed for women and features sculpted fit & shape. Also, many divers prefer back inflation as it provides greater Armorshield Cordura Full Weight Integration 3-Dimensional Internal Gusset freedom at the front of the BC and excellent stability while diving. Self Adjusting Lumbar Support Pivot Buckles / Sculptured Shoulders Sure Lock TM Integrated System Multi-Set Waist Band Contour Back Pack Powerline Inflator Tank Traction System Shown with optional air-source Sculpted shoulder straps. Larger D-rings for easier shoulder strap adjustment. Waistband Adjustment. Rolled Neoprene Collar. Fold-out pocket Passport Lightweight Travel BCD A BC made with the travelling diver in mind Specifically created with the travelling diver in mind, this BC s design uses durable, lighter weight materials to reduce bulk and weight while still offering the many features of a traditional SeaQuest BC. The LIBRA SPECIFICATIONS Type of BC Back Inflation Fabric 840 Denier Weight System Sure Lock TM integrated weight release system Waistband Adjustable Multiset + Optional 12 Expander Back PackLarge Contour Pack with Traction Pad Pockets Non-releasable weight pockets Clips, D-rings Large D-rings, 1 Female Clip, Jon Line Dump Valves 2 Standard Lower Back Sizes Available S, M, ML Lift Capacity Lbs/Ltrs 50lbs (22 Litres) in all sizes Colours Available Black/Silver Passport is the lightest and easiest travelling BC in SeaQuest s line and includes its own built-in storage bag. Self Adjusting Lumbar Support Tank Traction System Full Weight Integration Powerline Inflator Multi-Set Waist Band Depth Compensate-ing Contour Back Pack Shown with optional air-source Quickdraw Weight Placement System. Hook and Loop waistbands. 3D rings. PASSPORT SPECIFICATIONS Type of BC ADV Ladies Jacket Fabric Armorshield Cordura Weight System Integrated Quickdraw Weight System Waistband Comfortable Hook and Loop Waistband Back PackContour Back Pack Pockets 2 large, secure Zippered Utility Pockets Clips, D-rings 3 Utility D-rings Dump Valves 2 Shoulder and 1 Lower Sizes Available XS, S, M, ML, L, XL Lift Capacity Lbs/Ltrs XS=18/7, S=21/9, M=25/11, ML=28/12, L-37/16 Colours Available Blue/Tangerine or Silver/Yellow

24 BCD s and Regulators 25 SET SPECIALS. COPY AND PIX TO COME

25 Rebreathers D rager rebreathers take diving to a new and exciting level, where the gurgle of exhaust bubbles is gone, leaving the serene silence of the underwater world. The Drager units featured here are rebreathers, where nitrox mixture is rebreathed after it has gone through a circular path of CO2 absorption followed by nitrox re-enrichment. In this semiclosed circuit there is optimal reuse of exhaled gas. This means there is minimal gas to expel so fewer bubbles. Your mixed gas cylinder could last you a whole weekend of diving, as your breathing gas usage can drop by up to 90%, when compared to open-circuit scuba equipment. The process of CO2 elimination heats and moisturizes the gas the diver breathes, resulting in greater comfort. By construction and design a Drager rebreather is also considerably lighter than standard scuba equipment. The combined result of these differences is simply startling. The diver is immersed in a peaceful, quiet world. Sea creatures are noticeably less intimidated. The air is moist and warm, much like rainforest air. There is increased freedom of movement and comfort. Drager lets the diver blend gently and silently into the underwater world. It s how it should be. Dolphin Rebreather The Dolphin is a recreational semi-closed re-breather with constant gas flow and a bypass for additional demand supply. The CO2 is absorbed via the scrubber canister. The Dolphin is limited to a depth of 40m (130 feet) with optional 32% O2 dosage insert. DragerRay Lighter than the Dolphin, the DragerRay is a semi-closed rebreather. It provides constant gas, and bypass for additional gas demand, and CO2absorption through the in-built scrubber canister. The DragerRay is limited to 22m (72 feet) with its dosage insert of 50 percent oxygen. An optional kit is available which can enhance the depth capability to 40m (130 feet). The DragerRay comes complete with a buoyancy compensating jacket with inflator, five integrated weight pockets and a by-pass valve with integrated constant dosage for nitrox 50, a bailout regulator, flow meter, and an operator s manual. The Dolphin is equipped for dosage inserts of nitrox gas comprised of 40, 50 and 60% oxygen. It comes complete with a buoyancy compensating jacket with inflator, five integrated weight pockets and bypass valve with integrated constant dosage for nitrox 50, bailout regulator, flow meter, and operator s manual.

26 Gauges/Computers Computers 27 There are three very good reasons to purchase a quality dive computer. Firstly, used properly, a dive computer will greatly increase diver safety by reducing the risk of decompression sickness. They do this by calculating complex decompression algorithms and provide the diver with the best possible information. Ideally, the computer should have three modes: air, nitrox and gauge.the Air mode should accommodate for use with standard air only, the Nitrox mode for use with up to three nitrox mixes containing 21-99% oxygen and the Gauge mode for use as a simple bottom-timer. The second reason to own a good dive computer is because they do all the complex calculations, you are free to concentrate on your diving, which will make your time under the water more enjoyable. The third and final reason to invest in a good quality dive computer is because they give you more bottom time with increased safety. There are four vital safety elements to consider when choosing a computer. 1. Does it use microbubble technology to calculate decompression? 2. Does it offer continuous decompression? 3. Does it offer a multi-step ascent rate? 4. What about personal adjustment? Calculating Decompression? Calculating Decompression The most accurate method of calculating decompression is by using the Suunto RGBM. The Suunto RGBM (Reduced Gradient Bubble Model) is used in the Vyper, Stinger, Vytec, Mosquito and the Cobra models of dive computer. In essence, the Suunto RGBM is an advanced algorithm for tracking both dissolved and free gas in the blood and tissues of divers. The advantage of the Suunto RGBM is that it can address a number of diving circumstances outside the range of just-dissolved gas models by, for example, monitoring continuous multi-day diving, computing closely spaced repetitive diving and taking into account adverse dives deeper than the previous dive. Why is RGBM so important? The traditional approach to decompression theory is referred to as multi-tissue, based upon the research of the pioneer of diving medicine, Professor J S Haldane. The Suunto Mosquito The now famous Doppler testing found that micro-bubbles exist in our body when we dive. The key to avoiding decompression sickness is to keep the bubbles small enough so that they can travel through all tissue compartments. The Reduced Gradient Bubble Model, the most advanced table available to minimise growth of micro-bubbles is the safest system available. What about ascent rate? Many companies still use outdated variable ascent rates, ie: the computer allows you to ascend faster at deeper depths. More recent testing and research by Suunto has established a slower ascent rate. This offers both a greater chance of eliminating microbubbles of nitrogen through normal exchange in the lungs, and less chance of these bubbles reaching a damaging size. As a result of extensive research, Suunto has applied the principle of a single slow ascent rate of 10 metres/min. In order to aid in maintaining a slow ascent rate Suunto uses a multi-step ascent rate meter on all models. This pic is a repeat. I must be replaced by info on D9 model Despite the fact that his research is over 100 years old, it s still the basis for the most commonly used dive tables such as the US Navy and Bhulmann, & thus the basis for most dive computers today. These traditional tables break the body into sections, which can absorb and eliminate nitrogen at different rates. These are called tissue compartments. (eg blood, bone, muscles and organs). Modern research by Suunto and the renowned Bruce R. Wienke has shown a different approach significantly improves diver safety.

27 Continuous Decompression Continuous decompression is the ability to measure and calculate, in real time, the optimum depth for decompression. Since the calculation is updated at very short intervals, the diver is guided to the surface in numerous short stops. The sets of ideal decompression depths tend towards an exponential curve, which represents the function governing tissue nitrogen absorption & elimination. Combined with a controlled ascent rate, it is one of the most natural decompression methods known today. What else? Other desirable features to consider are: safety stop countdown, preset alarms with automatic backlight activation, adjustable profile memory sampling rate and bookmarks. Of course it should be a very good watch, incorporating complete calendar clock functions, dual time, daily alarm and a stopwatch with elapsed time and split-time measurement. The ability to create personal settings through adjustment options give more versatility and safety to the diver. The Cobra, Mosquito, Stinger, Vyper and the Vytec feature a high-definition electroluminescent display which can be adjusted to be on for 5 to 30 seconds, or turn on automatically when an important alarm is given. Finally, most of the top line models offer a feature that they call The Interactive Advisory System. Uploading a dive profile to a PC Most of the top line computers offer this feature which is an intuitive menu system much like a mobile phone read-out. It makes life substantially easier. Can I interface my dive computer with my PC? Being able to download dive profiles is becoming increasingly popular among divers. Suunto introduced the first PC interface in 1989 and has held the lead in this area ever since. What s Gas Switching? Gas switching is as it sounds, switching gas mixtures while under the surface. Practised by only very capable divers, but becoming increasingly popular, gas switching can increase bottom time and decrease decompression time significantly. Clearly, this exercise would require an advanced dive computer. The Suunto Vytec is up to the challenge. When in Nitrox mode the user can preset up to three different gas-mixes containing 21-99% oxygen. Preferred gas mixes can be stored as default (e.g. EAN32, EAN50, EAN99), and be set ON or OFF for each dive, or modified as needed. The Suunto Vytec provides easy and reliable gas switching between enabled gases during the dive. The Suunto Vytec The large memory capacity of the Suunto dive computers allows you to transfer data dive profile, maximum depth, temperatures, air consumption and nitrox information directly from your dive computer to your PC at home or your laptop on board. What about memory? Memory is important. You ll need to choose a computer with sufficient memory to cover you for your dive period. All of the computers in the following pages have logbook and history memory. However, the Spyder, Cobra, Vyper, Mosquito, Stinger and Vytec store up to 36 hours of detailed dive information that can be either viewed on the screen, or downloaded to your PC. In fact, some of these computers even allow you to set the sampling rate (the interval it takes a reading, either 60, 30, 20 or 10 seconds). These days, very good. In days gone by cameras, strobes and other divers gauges interfered with the crude wireless technology of the gauge. This meant they weren t that accurate or, subsequently, popular. Now, thanks to developments from Suunto, wireless technology is accurate and dependable, and becoming increasingly popular with divers who seek a more streamlined system. The Suunto Vytec comes with an optional wireless pressure transmitter that can easily be attached to the high-pressure port. How good is wireless technology? The wireless operation can easily be enabled or disabled in the Vytec s settings. With the wireless transmission enabled, the Vytec displays tank pressure and calculates remaining air time based on current gas consumption. The wireless transmission can be used in Air, Nitrox and Gauge modes. The pressure transmitter is 300bar (4000psi) compatible, and has user replaceable battery. pic of D9 to go here

28 BCD s 29 Computers: Your Icon Guide Dive Computer Icon Guide Personal computers are amazingly powerful devices designed to make your life easier. Personal dive computers are no different offering state-ofthe-art technology wrapped in a watertight seal. Each of the following Continuous Decompression is the ability to measure and calculate, in real time, the optimum depth for decompression. This is a safer type of decompression as it more closely follows the way nitrogen is eliminated from the body. PC Downloadable gives you the opportunity to transfer information depths, temperature, air consumption, nitrox information and ascent rate - to a PC or laptop after your dive You can then enter further data buddy s name, weather, tides, etc - to create a comprehensive dive log that can be stored electronically and shared via Hour Log Book Memory allows you to store a lot of information about your dive and the best computers boast 36 hours of continuous recording. computers offers a dazzling array of features. These icons below will help you quickly and easily see which one has the features you need. Refer to the table on pages xx & xx for more information. Automatic Activation means the computer starts recording the dive the moment it is submerged, meaning fewer hassles and a higher level of accuracy and therefore safety. Electroluminescent Display is a clear blue backlight which activates either with a push of a button or automatically when dive alarms are given, making the dive parameters and/or time clearly visible and legible in the darkest environment. Personal Adjustment / Altitude Adjustment can be adjusted for diving at altitudes up to 3000m (10,000ft). A personal level of conservatism can be added. This option gives more versatility and safety. RGBM RGBM Tables - (Reduced Gradient Bubble Model) are by far the most advanced way of calculating decompression rates, increasing bottom time and decreasing the risk of decompression illness. Nitrox Compatible computers are becoming more desirable as nitrox diving is becoming more popular. Maximum Depth Alarm / Bottom Time Alarm eliminates the need to constantly check your depth gauge, allowing you to enjoy the dive. Multiple Operating Modes in advanced dive computers are capable of being set in several different modes Air (for operation as a diver computer with standard air mixes), Nitrox (for operation with oxygen-enriched air mixes, Gauge (for operation without decompression function, often used by technical divers) and Free (for free diving/ snorkelling). Air Integration electronically calculates the minutes of gas remaining and shows air pressure remaining. Bookmark Facility enables the diver to enter bookmarks (possibly highlighting interesting parts of the dive) into the computer s logbook for future reference. The information, including profiles, can be read from the display or downloaded to a PC. Calender / Clock Function offers time and date functions. (Some units offer dual time and stopwatch functions.) Built-in Dive Simulator turns the computer into a powerful dive-planning tool, allowing you to map out several possible scenarios while on the surface, (including requisite decompression) allowing you to optimise dive time and plan for contingencies. Wireless Air Integration allows for the display of tank pressure and calculates remaining air time based on current gas consumption. The wireless transmission can be used in Air, Nitrox and Gauge modes. The pressure transmitter is 300 bar (4000 psi) compatible and has a user-replaceable battery. Smart Technology uses mobile phone technology and helps the diver easily navigate the numerous functions of the computer. DEEP STOP Deep Stop allows for a faster ascending rate without the need for a long decompression stop by introducing deco stops at greater depth. User Replaceable Battery eliminates the need to take your dive computer to a dive shop or jeweller, saving time and money.

29 Vytec Versatile and feature-rich Multigas Decompression Computer with Optional Wireless Transmission The Suunto Vytec is the most feature-rich dive computer on the market today. A versatile full decompression computer for the advanced diver, its three operating modes, ability to set multiple gases and its optional wireless pressure transmission puts the Vytec in a league of its own. Continuous Decompression Maximum Depth Alarm / Bottom Time Alarm Personal Adjustment / Altitude Adjustment PC Downloadable Multiple Operating Modes Calendar / Clock Function 36-hour Log Book Memory Automatic Activation Built-in Dive Simulator RGBM RGBM Tables Electroluminescent DisplaySure Lock TM integrated System Wireless Air Integration Nitrox Compatible Bookmark Facility SMART Technology Suunto Vytec and Transmitter Stinger When function meets style, you have the Suunto Stinger Stylishly designed with a choice of either titanium or metallic case, the Stinger is a superb dive computer with stunning good looks. Boasting a vast range of features that would satisfy even the technical diver, the Stinger is the dive computer you can wear every day. Continuous Decompression Maximum Depth Alarm / Bottom Time Alarm Personal Adjustment / Altitude Adjustment PC Downloadable Multiple Operating Modes SMART Technology RGBM 36-hour Log Book Memory RGBM Tables Automatic Activation Electroluminescent DisplaySure Lock TM integrated System Calendar / Clock Function Nitrox Compatible Bookmark Facility Available in titanium or stainless steel case with a choice of metallic or elastomer band Mosquito Performance that bites The rugged Suunto Mosquito is an advanced wristop dive computer. With complete air and nitrox capability and a separate free-diving mode it is suitable for all kinds of diving. Continuous Decompression Automatic Activation Maximum Depth Alarm / Bottom Time Alarm PC Downloadable Electroluminescent DisplaySure Lock TM integrated System SMART Technology 36-hour Log Book Memory Bookmark Facility Multiple Operating Modes RGBM RGBM Tables Calendar / Clock Function User Replaceable Battery Nitrox Compatible Made of lightweight composite material Personal Adjustment / Altitude Adjustment

30 Gekko Gives the specifics of any diving situation at a glance An ideal choice for sports divers who do not require a PC interface or simulation features. The Gekko is easy to operate and its superbright phosphorescent LCD Computers 31 display can be charged with a dive light, enabling you to read the displayed digits even in dark conditions. It can be worn as a wrist unit, or mounted on Suunto s consoles. Continuous Personal Adjustment / 36-hour Log Book Maximum Depth Alarm / Bottom Time Alarm SMART Technology Automatic Activation Calendar / Clock Function RGBM RGBM Tables Nitrox Compatible Electroluminescent DisplaySure Lock TM integrated System Bookmark Facility Can be used with both air and nitrox, and is designed to give the specifics of any diving situation, including decompression, at a glance. Viper The advanced technology Computer Featuring smart-button technology, the Vyper is simple to use. Using mobile phone technology, the SMART button feature prompts the diver and allows for easy navigation of the numerous functions. Continuous Maximum Depth Alarm / Bottom Time Alarm Personal Adjustment / Altitude Adjustment PC SMART Technology Calendar / Clock Function RGBM 36-hour Log Book RGBM Tables Automatic Activation Electroluminescent DisplaySure Lock TM integrated System Built-in Dive Simulator Nitrox Compatible Can be used with twin-gauge. Can be rigged with tri-gauge and compass combo. Bookmark Facility Cobra Brains and Beauty Featuring air integration (giving cylinder pressure and remaining air time) the Cobra makes the perfect dive buddy. Its 300-bar cylinder compatibility suits a wide range of tank capacities. Continuous Decompression PC Downloadable 36-hour Log Book Memory Proving that the Cobra s looks are matched by its intellect the computer s stylish, ultra slim-line boot is easy to hold and creates minimum drag. Maximum Depth Alarm / Bottom Time Alarm Air Integration Automatic Activation Personal Adjustment / Altitude Adjustment Calendar / Clock Function Built-in Dive Simulator RGBM RGBM Tables Nitrox Compatible Cylinder pressure readout Remaining Air Time Readout Electroluminescent DisplaySure Lock TM integrated System Bookmark Facility SMART Technology Multiple Operating Modes

31 D9 The world s first all-in-one dive computer Suunto D9 is the world s first dive computer to integrate a digital compass and wireless tank data reception. Underwater, a diver must monitor several gauges to receive the crucial information about the dive: depth, time, tank pressure, decompression status and direction to name just a few. Suunto D9 combines all dive-critical information in one instrument, conveniently mounted on your wrist. Instead of monitoring a multitude of gauges, you can concentrate on what is important - diving. Suunto D9 is the world s first dive computer to incorporate a digital compass. The compass shows the general direction with a graphical compass rose, as well as the exact bearing with a numerical display. Headings can be stored in Suunto D9 s memory for later analysis. The compass can naturally be used on land, too. By using Suunto D9 s optional wireless transmitter, the diver can also monitor tank pressure & air consumption data from the wrist. Continuous Decompression PC Downloadable The remaining tank pressure is displayed both numerically and graphically, and an estimation of the remaining airtime is given throughout the dive. This allows the diver to monitor the remaining air supply at the same time as he monitors depth and time. Real time air consumption is also stored in the memory. Suunto D9 can be used with up to 3 different gas mixes containing % oxygen, allowing gas switching during the dive. Decompression calculations are based on the Suunto Deep Stop RGBM model (see information on the right), which provides interactive deep stops as an alternative to traditional safety stops. For those intending to go really deep, the maximum depth display is set at 200m (660ft). In addition to basic dive data, the built-in dive logbook provides a graphical dive profile where real time water temperature & tank pressure data can be analysed on the wristop computer. The sampling rate can be set to as low as 1s. The beautifully designed Suunto D9 has a titanium housing. It includes an USB-compatible PC interface & the Suunto Dive Manager 2.0 software. Maximum Depth Alarm / Bottom Time Alarm Personal Adjustment / Altitude Adjustment 36-hour Log Book Memory Multiple Operating Modes Calendar / Clock Function RGBM RGBM Tables Automatic Activation Built-in Dive Simulator DEEP STOP Nitrox Compatible Compasses SK-6 Compass This high-quality, liquid-filled diving compass has improved acrylic capsule design for added durability, flushing holes, a side-reading window and a rotating bezel with luminous markings. It is only available as a wrist model. Going the Combo It s possible to have two or three gauges working in a console. Suunto s modular system makes the choice all yours. The 2-in-line alternatively houses all Suunto wrist model computers or the SM-16 depth gauge for analogue display. The pressure gauge can be either the SM-26, suitable CB - Double-In- Line Combo console with the same instrument options as the Three-In-Line. With this model the SK-7 compass is on the reverse side of the pressure gauge. Suunto Vytec and Transmitter CB - Three-In-Line This Combo console houses either Suunto computers or the SM-16 depth gauge. Electroluminescent DisplaySure Lock TM integrated System Bookmark Facility SK-7 Compass With its tilt potential of +/- 30 degrees, the SK-7 offers ease of operation, and a wide console window for more accurate readings. The SK-7 is available in wrist, hose, or console unit to fit any in-line gauge configuration for 200 bar cylinders, or SM-36 which is suitable for 300 bar cylinders. The SK-7 compass in console can be added to the CB 2-in-line to make a CB 3-in-line or CB Double-in-line. CB - Two-In-Line Pressure gauge and depth gauge. CB - Double Pressure gauge and compass on reverse side. Wireless Air Integration SMART Technology CB - Two Pressure gauge & compass.

32 What causes Decompression Illness? Air consists roughly of 78% Nitrogen (N2), 21% Oxygen(O2) & 1% Argon (Ar), Carbon Dioxide (CO2) & other trace gases. When we scuba dive, we metabolise the oxygen, but as Nitrogen is an inert gas, it s stored in the body just like the unseen gas in an unopened bottle of soda water. It all starts in the lungs, where the N2 is first diffused through the alveolar and capillary membranes, into solution in the blood. This N2-rich blood is then distributed by the arteries to the various tissues throughout the body. This is called on-gassing. In decompression modelling, these tissues are commonly called compartments. The deeper and longer we dive, the more N2 is taken up by the body until a tissue finally reaches a point of saturation. When one dives, tissues saturate with N2 at different rates. This is determined by the blood flow rate to the tissue in question. The brain, for example, has a very good blood supply, and is classified as fast tissue, while joints typically have a poor blood supply and are rated as slow tissue. There are several others in between. The length of time that it takes for a tissue to reach 50% saturation level at depth is called the tissue half time and is usually measured in minutes. During ascent, the process is reversed, and the gas is off-loaded from the tissues back into the blood supply. This blood is then The Suunto Deep Stop RGBM algorithm Suunto s new RGBM algorithm takes the effects of free gas into consideration. Classical Haldane-type decompression calculation assumes that all gas is dissolved into the tissues, and remains dissolved as long as the maximum tissue tensions are not exceeded. Bubbles are assumed to form only when the Classical Haldane ascent rate or the m- values are exceeded. As the pressure gradient is invertedly proportional to the surrounding pressure, the diver is brought as shallow as possible, as fast as possible, in order to maximise offgassing. Doppler-studies however show that microbubbles are present on all dives. Therefore the effects of free gas need also to be considered in decompression calculation. The Suunto RGBM was designed to protect Suunto RGBM the recreational diver from the effects of micro-bubble build-up. It incorporates a bubble-factor based tracking system to adapt the decompression SUUNTO RGBM Computers & Gauges 33 returned via the heart to the lungs where the excess N2 & CO2 diffuses out through the alveoli in the lungs, and is exhaled. This process is known as off-gassing. The extent to which a tissue off-gases is determined by the pressure gradient (the difference between the tissue gas & the ambient pressure). There is a further important factor called the oxygen window. This is a naturally occurring gas tension reduction that arises in the actual tissues & venous circulation compared to the lungs & arterial circulation. This leaves room for expanding gas, caused by the ascent, to go without exceeding the ambient pressure, provided one doe not exceed a suitable ascent rate. Suunto s designed ascent rate of 10m/minutes takes full advantage of this phenomenon. The potential for decompression illness occurs when the ambient pressure reduction during ascent is too fast, & some of the excess N2 in the body is released from solution to form bubbles. These bubbles may then interfere with normal body functions, restricting blood flow & causing damage to tissues & nerves.for a diver with decompression illness, the symptoms may start while still underwater, or it may take several hours after surfacing. In some cases the symptoms may not show for several days. requirement based on conducted dive profiles. The maximum ascent rate is set to 10m/min. Continuous decompression provides maximum offgassing and a clean decompression curve. A 3 minute recommended safety stop is added to all dives deeper than 10m. Mandatory Safety sops are added to deal with adverse ascent rate violation. An extended service interval is prompted when microbubbling is present. The Suunto RGBM algorithm increases microbubble suppression on deep dives even further by introducing iterative deep stops. The first deep stop is placed at half the pressure difference between your maximum Suunto Deep Stop RGBM depth and the ceiling depth. Once the deep stop depth is attained, the next deep stop will again be introduced half-way to the ceiling, and so on. Once the ceiling depth is reached, continuous decompression is employed for staging the end of the profile. In the Suunto D9, the user can choose between the familiar Safety Stop providing Suunto RGBM, or the new Deep Stop RGBM.

33 Dive Computers - Quick Reference Features D9 Stinger Mosquito D3 Vytec Cobra Viper Gekko Operating Modes Air Nitrox Gauge Watch Air Nitrox Free/Gauge Watch Air Nitrox Free Watch Air Nitrox Gauge Air Nitrox Gauge Air Nitrox Gauge Air Nitrox Digital Compass Air Integration Wireless Air Integration (optional) (optional) Maximum Depth Display 199m (656ft) 150m (492ft) 99m (300ft) 99m (300ft) 150m (492ft) 150m (492ft) 150m (492ft) 99m (328ft) Ascent Rate Monitor / Alarm * gauge mode Full Decompression Data Consumed Bottom Time Graph ASC Time Display Up to 99 min Up to 99 min Up to 99 min Up to 99 min Up to 99 min Up to 99 min Up to 99 min Backlight phosphorescent display Audible Alarm Memory Capacity * Profile (20s sampling rate) ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 50 h * Logbook ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 36 h ~ 50 h lifetime lifetime lifetime lifetime lifetime lifetime lifetime lifetime * History Profile Sampling Rates 1, 10, 20, 2, 4, 10, 20 s SCUBA 1, 10, 20, 10, 20, 10, 20, 10, 20, 30 s 30, 60 s 20, 30, 60 s * 2 s Free* 30, 60 s * 30, 60 s * 30, 60 s * 30, 60 s * Decompression Model SUUNTO SUUNTO SUUNTO Bottom SUUNTO SUUNTO SUUNTO SUUNTO RGBM RGBM RGBM RGBM timer only RGBM RGBM RGBM Personal Adjustment Altitude Adjustment Safety Stop (+deep stop) (+deep stop) Built-in Dive Simulator Dive Planner Calendar Clock With dual time With dual time With dual time With dual time Stopwatch Dive Time in Seconds & Minutes In Gauge In Free/Gauge In Free mode In Free & In Gauge mode mode Gauge modes mode Temperature Display Max Depth Alarm Daily Alarm Battery Power Indicator User Replaceable Battery Selectable Metric/Imperial Units Nitrox Features Free Gauge Watch Notes 02 % Setting Up to 3 gases containing 21-50% 21-50% 21-99% Gas Switch During Dive Max P02 Adjustment CNS% + OTU Calculation (OLF) Up to 3 gases containing 21-99% 21-50% 21-50% 21-50% DEEP STOP

34 Masks Masks and Snorkels 35 Y our mask, snorkel and fins are the very basis of your diving equipment. Regardless of the quality of your regulator or BCD, without good-quality mask, snorkel and fins, your diving experience will be less than it could be. There are an array of features to choose from, so when choosing an item it would pay to ask the people in the dive store for advice. Selecting your mask When selecting a mask for yourself the most important things are fit and comfort. A mask has a good fit when it seats comfortably on the face, seals well and does not leak. To check the fit of a mask, simply place the mask on your face without the strap in place and inhale through your nose. The mask should seal on your face without any leaks. All quality scuba masks have a silicone skirt, the softer and more comfortable the better. Do not confuse softness with thinness of the skirt material however. The best masks have a thicker, more durable skirt while maintaining comfort. Aqua Lung use the best silicone made of hypoallergenic LSR (injection molded liquid silicone). LSR has the highest resistance to UV and remains soft and durable long after cheaper copies have deteriorated. Ease of adjusting your mask is also an important feature to look for when selecting a mask. Professional Series Adult Masks US Divers/Aqualung Professional Series masks are made with high quality hypoallergenic silicone skirts, tempered glass lenses with performance and style in mind. Designed to accommodate a variety of face sizes, our double-featured edges ensure a tight seal, contoured nose pockets make equalising easy! Kea Special features include innovative technical features and maximum lightness. Features Type: Double Lenses Lens Thickness: 3mm Temper Specs: ANSI: DEMA American Standards Buckles: Quick adjusting, Rotating Skirt: Clear & Black Silicone Frame Colours: Cherry, Black, Clear, Yellow, Blue. Weight: 180g Tyke Incredibly strong, light frame making it appealing & ideal for every activity. Features Type: Double Lenses Lens Thickness: 3mm Buckles: Quick adjusting Temper Specs: ANSI: DEMA American Standards Skirt: Clear & Black Silicone Frame Colours: Blue, Yellow, Clear, Cherry, Pale Blue, Metallic Clear, Grey and Blue. Mask Terms ANSI: American National Standards Institute CAD: Computer Aided Design Hypoallergenic: Low Allergy LSR: Liquid Silicone Rubber Optical Version: Can be modified for people who wear glasses. Pexisol: a plastic material that, compared to glass, offers superior transparency, one tenth the weight, 20 times the resilience. Mythos To ensure a clear, perfect vision, lenses are slightly raked and placed closer to the eye. Extremely comfortable, this mask is ideal for all types of dives. Features Type: Double Lenses Lens Thickness: 3mm Temper Specs: AMSI: DEMA American Standards Buckles: Quick Adjusting Skirt: Silicone LSR: Clear, Black Frame Colours: Grey, Blue, Clear Weight: 177g Falco Small, compact and light, this mask has two lenses. The most advanced mask for free divers. Features Type: Double lenses Lens Thickness: 3mm Temper Specs: AMSI: DEMA American Standards Buckles: Quick Adjusting Skirt: Silicone LSR: Clear and Black Frame Colours: Black, Yellow, Blue, Weight: 151g

35 Masks... continued Idea This mask has an easy pushbutton adjustment of the strap tension combined with maximum adaptability to all facial shapes. Features Type: Double lenses Lens Thickness: 4mm Temper Specs: ANSI: DEMA American Standards Look Ever since its launch, this mask has been very successful - today it s one of the bestselling masks in the world. Features Type: Symmetrical lenses: can be replaced with prescription opticals. Lens Thickness: 4mm Temper Specs: ANSI: DEMA American Standards Buckles: Rotating through 360º; ideal for correct strap positioning Skirt: Clear Silicone LSR Frame Colours: Blue, Turquoise, Black, Yellow, Clear, Pink Snorkels Heliox This snorkel, which is made from non-allergenic material, has been carefully designed to make it easier to stay underwater for longer thanks to the use of a comfortable, orthodontic silicon mouthpiece that is supported by a swivel element to optimise its position. The spray-proof end on top of the bore reduces the possibility of water entering. Buckles: Quick Adjusting, Rotating Skirt: Clear and Black Silicone LSR Frame Colours: Blue, Turquoise, Black, Yellow Weight: 198g Air Midi Dry P/V The Air Dry snorkel is also available in a Midi version, which is identical to the Air Dry snorkel, but with a smaller mouthpiece. Features are identical to that of the Air Dry, except that this model snorkel only comes in 6 colours, including the colour shown here. A new exhaust valve placed on the lower section ensures complete draining without any water residue and also halves the time and effort needed for breathing. The snorkel retainer features an exclusive lever system so connection to and removal from the mask is simple and immediate. Heliox is also available in a version without a valve, for those who prefer simplicity. Air Dry P/V This snorkel is considered the snorkeller s best choice. A twin valves purging system halves the time and effort needed to purge the snorkel. The mouth-piece can be turned to the most comfortable position in the mouth. Features Type: Traditional Tube & Mouthpiece: Anatomic (curved) Material: Thermoplastic & Silicone Retainer: Quick fixing Purge Valve & Vent System: Yes Colours: 8 colours, including black, grey and turquoise Snap When rolled up, this snorkel is the size of a fist. It returns to its original shape when you unroll it. Snap is ideal - instead of hanging from a mask strap, it s supplied with a case, so it s easy to carry around. It has a wave guard and its anatomically shaped mouthpiece can be turned to the most comfortable position. Features Type: Foldable Tube & Mouthpiece: Anatomic (curved) Material: Thermoplastic & Silicone Retainer: Quick fixing Vent System: Integrated Colours: Clear, grey and blue.

36 Fins - Technical Features Spring Effect: Rubber is the best possible spring as it works in both compression and tension. During kicking the rubber injected into the ribs accumulates elastic energy which is released at the moment the fins change direction. This increases their reactive force, eliminating dead changeover time making the fin more propulsive and energy efficient.. Layering: Layering of thermoplastic rubber into recessed ribs on the blade of fins provides the best possible spring effect without changing the natural structure of the fin. Variable Geometry: Optimising and proportioning of the fin in relation to the muscular force used at the specific phase of kicking, makes swimming less tiring. Rigid Foot Piece Rib: The rigid material used in the foot piece assists in transmitting all the muscular power through to the flexible fin. Channelling and Ribbing: Ribs add rigidity to the blade and act as vertical stabilisers (lessening twist) while channels guide the water smoothly over the fin in the correct direction. Traction Pads: Pads on the sole of the fins give traction on smooth surfaces such as boat decks, rocks and swimming pool tiles. Stratos FP Features the same layering technology as the Adjustable version The foot pocket is comfortable, but shaped to eliminate power-wasting slacks. This fin has different thicknesses: a single layer at the top for more comfort, a double layer at the sides for better control, triple layers at the instep where most effort is needed. The side ribs transmit the stroke effort from foot to blade without bending. Note: The blade is not at the same level as the foot pocket, but at a 20 degree angle. This feature allows a more relaxed leg position during finning. Features Type: Foot pocket Buckles: No Weight: 0.801kg Total Length: 640mm Material: Thermoplastic Stratification: Yes Spring Effect: Yes Sizes: 36/37; 38/39; 40/41; 42/43; 44/45; 46/47 Colours Range: Yellow, Blue, Dark Grey Developed around the Layering technology that combines rubber and a plastic support, these recently launched fins are covered by the most recent patents and studies carried out on TECH- NISUB fins, the spring effect, flow channelling, foot piece with rigid material rib, rotating adjustable buckles that can be unlocked quickly and pre-deformed elements. Blades HF are totally edged in rubber for better protection against impact. The performance provided makes these fins a real winner. They will repeat and exceed the success enjoyed with the Stratos range. Features Type: Adjustable Buckles: HF quick release, quick adjusting Weight: 0.998kg Total Length: 668mm Material: Thermoplastic Stratification: Yes Spring Effect: Yes Sizes: Small, Medium, Large Colours Range: Yellow, Blue, Clear, Black Fins, Masks and Snorkels 37 Blades HF The best-selling and most highly rated fins in the world The foot pocket has been designed ergonomically: the sole provides the best elastic reaction The sole has generous non-skid rubber patches. Pictures 1, above and 2, below left: The blade edge is positioned under the heel to transfer the energy from the foot to the blade.

37 IDEA 3 HF Designed for maximum efficiency during thrust IDEA 3 HF can adapt itself perfectly to the different phases of the stroke cycle, continually maintaining the ideal shape and turning the muscle effort into thrust power. Thanks to the development of an exclusive injection process, protected by several patents, which makes it possible to mould 3 materials of different characteristics together, IDEA 3 HF is made to satisfy even the most demanding diver. The foot is made from soft, comfortable thermoplastic rubber, while the central element of the blade is made from a flexible and elastic thermoplastic compound, preformed both lengthways and crossways to obtain variable geometric functioning. Last but not least, the ribs, the true frame of the fin, are made from a rigid and resilient thermoplastic substance that guarantees maximum power. IDEA 3HF fins come with the quick and comfortable Hands Free Buckle System so you can release them without using your hands. Features Type: Adjustable Buckles: HF quick release, quick adjusting Rotating: Yes, 360 degrees Weight: 0.907kg Total Length: 625mm Material: Thermoplastic Stratification: No Spring Effect: Yes Sizes: 3 - Compact to Giant Colours Range: Black and Yellow, Grey and Blue, Black and Grey Caravelle ADJ The latest generation materials for fins that owe their name to the great Technisub tradition These fins are the direct descendants of those Caravels that, in the early 60s turned out to be a tremendous innovation in the area of underwater thrust. The Caravel fins retain the original design; they are made from 2 different materials that greatly influence the fins performance - flexible technopolymer and rubber. The blade has an exceptionally effective and innovative thrust structure, enabling the diver to obtain extraordinary performance with the minimum of effort. The open-footed boots are soft and comfortable, anatomically shaped to get the best flexible response. The traditional buckle ensures the correct positioning of the fin s strap and makes them suitable for the more demanding dives as well. Features Type: Adjustable Buckles: Quick release Weight: 0.806kg Total Length: 645mm Material: Thermoplastic Stratification: Yes Spring Effect: Yes Sizes: Small, Medium and Large. Colours Range: Black and Yellow, Black and Blue, Black and Grey Left: In the foot pocket version of the IDEA 3HF, the foot forms one body with the blade, transmitting to it the full stroke effort, while retaining all the necessary comfort requirements. Left: Strap adjustment is quick and easy. It requires less force than traditional fins. Above: The fin blade is very thin and flexible with excellent thrust. Pictured below left: In this version, called the Caravelle, the thrust structure is formed in accordance with the same innovative concepts as the Caravelle ADJ, above. The blade of the fin extends all the way back under the heel, forming an integral unit with the foot pocket, which, in turn, extends through the ribs in the blade to form a single unit. The blade is completely bordered in rubber to provide maximum active and passive protection

38 Cameras Camera Gear 39 T he images you capture will be a permanent memory of your dive experiences, which is why one of your first investments after your dive gear should be a camera. Photography is a complex subject but if you have any experience using a camera on land, you will find underwater photography can be as easy or as technical as you want to make it. Sea & Sea boast the largest range of equipment and accessories for creating award-winning underwater images. From cameras and housings through to the most technologically advanced, underwater strobes (underwater equivalent of the flash) and even into the burgeoning area of underwater digital photography, Sea & Sea has the equipment to suit your MX-5II All weather camera 35mm film A great starting place Building on the reputation of the MX-5, the MX-5 II is a camera that makes underwater photography fun and easy. All you need to do is Tough and non-corrosive construction. Optional YS-20A strobe and MX-5 II close up lens for increased creativity. Digital LCD display shows frame counter, film load confirmation & low battery warning. Weatherproof and waterproof to 36m. Super sharp, all glass, 28mm lens. Built in flash for brilliant land or underwater images. needs and budget. An ideal starting place is your friendly Sea & Sea dealer who can point you in the right direction. Alternatively, our website, has some information about this exciting and rewarding addition to the diving experience. point and shoot. The MX-5 II is the perfect camera to capture memories of your dive. The MX-5 II system allows great photos like this at the push of a button. Sportsfinder for easy framing doubles as lens protector when folded down. Two neon-like colours, blue and yellow. MX-10 All weather camera 35mm film The simple camera that takes professional quality photographs Weatherproof and waterproof to 45 metres. System includes close up, wide and macro lenses as well as the YS-40A strobe. All the MX-10 lens accessories can be inter-changed underwater. Shoot close up, wide & macro all on the same dive. 32mm f4.5 glass lens for excellent image quality. Tough, non-corrosive polymer construction for toughness and durability. Control over aperture for creative exposure and depth of field. Automatic film advance, film counter and automatic film rewind for fast, reliable operation. Here is an uncomplicated system that performs like an expensive one. The MX-10 has the flexibility to take great photos due to the availability of interchangeable lenses and a strobe. This image is referred to as a macro shot. Essentially, it is a super close up image depicting small animal or plant life, or fine detail in larger ones. Macro photography is made simple using the MX10, which combines simple operation with stunning quality. Macro shots allow the photographer to concentrate on composition and the subject. Note the detail in this image, the strobe is very close to the subject, so there is plenty of light which results in brilliant, saturated colours. The MX-10 system allows great photos like this at the push of a button.

39 DX-3100 Full amphibious all-weather digital camera A world first This fully functional 3.1 megapixel digital camera is fully amphibious, which means that the chances of water damage and flooding of the World s first amphibious camera - depth rating is 150ft/45m. Maximum resolution: 3.1 Mega Pixel with 1/2.7 inch CCD. Image size is from 640 x 480 to x Digital 3 x zoom and1.6 inch Monitor on the back. Meniscus lens - can be used above or below the surface Also utilises all of the lenses designed for the MX10. camera is greatly reduced. Built-in colour correction filter and macro lens. Multi-flash functioning. Built-in 16MB memory. Colour: yellow. MMIII All-weather camera - 35mm film The evolution of the Motor Marine camera continues The new generation of Motor Marine is more rugged and offers more control than ever before. The MMIII is a rugged underwater camera with a depth rating of 60m, which has been specifically Strobe bracketing control Push-button shutter speed All controls are either on the top or in the back,making them easy to read and operate. 20mm f3.8 Primary lens makes it easier to focus. LCD display panel is illuminated for night diving or dark water 2-point focusing takes the guesswork out of focusing designed to meet the needs of both amateur and experienced underwater photographers. A variety of accessories and lenses are available, offering even more features & making the MMIII the first camera available with more features than have ever been offered on an underwater camera before. SLR Housings The choice of the serious photographer and the professional The best of both worlds, Sea & Sea housings allow you to take your land camera on the dive with you. Film, digital or video, Sea & Sea Housings are available for both film and digital SLRs. These include the Nikon F65, F80, F100, F5, D100 and the Canon EOS 300 and D60 camera bodies. Huge selection of ports to NX-5 suit most popular lenses. Housing All housings are waterproof to 60m or more. Massive selection of strobes and accessories for every need. Many features including leak detectors and Nikonos type bulkheads. NX-100 Housing housings are the ultimate in quality, usability and flexibility. NX-80 Housing CX-603 Housing

40 Digital Cameras, Housings and Accessories Sea & Sea leads the way Whether it be an amphibious digital camera, a housing for your digital SLR or accessories for the digital camera you already have, Sea & Sea can help improve your digital photos. Digital or Film? This is the most asked question in photography today and difficult to answer. While film still provides better image quality and can capture a greater range of colours and tones, the immediacy of digital makes it very attractive to many. Some of the better digital cameras, especially digital SLRs now have excellent quality up to 12x8 inch prints, and would suit the enthusiast underwater photographer. Whatever you decide, Sea & Sea provides a range of accessories so you can get the most from your photographic system. Some suitable ones for use with digital cameras are pictured here. DX Arm Strobes & Accessories Taking your photography further DC200 and Adaptor 20mm Wide Conversion Lens (suitable for use with Adaptor above) Macro Lens 2T (suitable for use with Adaptor above) YS-25DX Strobe DX Base Stay Whichever camera system you use, Sea & Sea has the widest range of strobes and accessories available in the world. Beginning with the tiny YS-30TTL Duo that allows TTL connection to either Sea & Sea or Nikonos systems and slave TTL flash, to the YS-90DX Auto that has TTL, slave and digital compatibility, and the mega-powered YS-350TTL that has a guide number of 32 and ultra wide 105 degree beam. The new DX30/60 houses a range of digital SLR cameras Camera Gear 41 Expand your digital horizons No matter which digital camera housing you own or are about to buy, Sea & Sea can expand your creative horizons with their unique digital adaptor system. Uses super high quality MMII-EX accessories. All accessories can be changed underwater. Available for housings from most manufacturers including Canon, Sony, Olympus and Ikelite. 16mm wide lens gives a 91-degree angle of view, the widest available for digital. 16mm, 20mm, macro 3T, macro 2T and 2 strobes available. Does not require any modifications to the original housing. Sea & Sea Underwater Digital Housings The best of both worlds. Combine the precision of an SLR with the instant availability of digital and you have a system that will be the envy of others. Sea & Sea introduce the digital housings which will be seen by others as a standard measure for quality and usability. Available for the latest technology including the Canon D60 & Nikon D100 SLRs. Uses NX system accessories for a huge range of available ports, lens gears and accessories. Compatible with Sea & Sea strobes. Waterproof to 60 metres. Use lenses from fisheye to telephoto. The ultimate in precision, quality and control. If you have further questions regarding your photographic equipment, please info@learntodive.co.za OR info@manex.co.za A huge range of arms and connectors are also available to suit any application. Whether you have a Sea & Sea film, digital or Nikonos system, we can increase the creative potential of your system with wide and macro lenses for all systems, strobe arms and optical view finders. For the Nikonos system the 12mm is the widest lens available anywhere in the world, and the Sea & Sea 16mm lens is the only underwater inter-changeable lens available for the Nikonos system. YS-350 Strobe YS-120 Strobe YS-90 Auto Strobe YS-60 Strobe

41 Neoprene Suits For all waters There are two ways to stay warm - with a wetsuit, or with a drysuit. Wetsuits are ideal for waters warmer than 21ºC, but if the water is colder, or if you spend a great deal of time in Iceland Semi-drysuit A 7mm, metal plush lined, one piece hooded suit with a drysuit zip a serious semi-dry for the ultimate coldwater wetsuit. 1 piece 7mm metal plush lined for superior comfort Attached hood features exclusive bubblerelease system and face seal. Thermal lumber and spine pad to protect the body s sensitive areas. 5.5mm flex panels behind the knees and elbows. 100% waterproof cross shoulder dry zip to ensure no water entry. Bali A great multi-purpose sports wetsuit with multiple applications. Lycra collar. 3mm one piece wetsuit. Wrist seals in Glideskin neoprene for easy dressing. Knee pads. Velcro zip tab. Twin needle flat stitch. Back zip. Balance Comfort 5.5 This 3-piece 5.5mm modular suit includes a one-piece, a shorty and a separate hood. 5.5mm one piece without hood, back zip, edge binding, plush lining. Flex panels at joints and on the bust of ladies models. Chest in glideskin for easier dressing. Gives a good seal when used with the shorty. Shorty with extended front zip: Protective spine pad. Glideskin internal finish for easier dressing, good seal. the water, you should consider a dry suit. Not only does it keep you dry, it also insulates you from the cold. Tropix 0.5mm Neoprene is a water-tight material - water does not pass through it like on conventional lightweight fabric suits. 0.55mm Neoprene offers all the advantages of Neoprene. The reduced thickness creates a very lightweight suit with minimal effect on buoyancy. Cup-stitched seams for improved durability/comfort. Warmer than conventional fabric suits. 1mm skin out chest reduces water evaporation to maintain warmth on surface. Skin in neck seal reduces water flow. Adjustable neck, contoured arms & legs for best fit. Durable kneepads resist abrasion, increase suit s life. Heavy duty non-corrosive #10 back zipper. Temperature range +78ºF Balance Comfort Wetsuit 7 This 2-piece modular suit includes a one-piece, a shorty and attached hood. 7mm one-piece without hood, back zip, edge binding, plush lining: Flex panels at the joints & on the bust of ladies models Chest in glideskin for easier dressing. Gives a good seal when used with the shorty. 7mm shorty with extended front zip: Protective spine pad. Glideskin internal finish for easier dressing. Gives a good seal when used with one-piece. Ultra-soft 3mm neoprene crotch comfort panel. Separate hood with smooth bib and face seal.

42 Neoprene and Shell Suits 43 Shell Suits: How to stay warm underwater W etsuits encase the diver s body with a layer of foam neoprene. The water enters the wetsuit and the body heats the thin layer of water next to the diver s body. The result is that the diver is wet, but warm. However, over time, water circulation draws heat energy away from the diver s body and at depth water pressure reduces the effectiveness of a wetsuit as an insulating device. The answer: a drysuit. A drysuit is a waterproof shell, the sole purpose of which is to keep the diver dry. By itself, it won t keep the diver warm. However, varying layers of insulation can be worn under the drysuit to keep the diver warm. The primary advantage of a drysuit from this perspective is that it allows you to vary your insulation with the needs of the dive. So if you re diving for protracted periods in cold water at depth, chances are you will be cold in a wetsuit. A drysuit is a significant investment, one that you ll expect to last for many dives. So it pays to invest in a high-quality suit. Putting features like kneepads, boots and zippers aside for a moment, the main thing to consider when choosing a drysuit is how its component material is made. Nearly all drysuits are made from foam neoprene. Some manufacturers use compressed neoprene while the better manufacturers use crushed. Crushed neoprene is significantly superior. As the name implies, crushed neoprene is foam neoprene crushed, making the neoprene tougher, more flexible, and more comfortable then any foam neoprene on the market. How to choose a drysuit The colder the water, and the deeper the dive, the more clothes you can wear under the drysuit. If this happens to your drysuit, your drysuit is now a wetsuit. And once this starts happening, your drysuit will never be dry again. Diving Unlimited International (DUI) invented the crushed neoprene process and called it CF200. Since that time, CF200 material has been the standard by which all other drysuits are measured. To make a CF200 drysuit they first build the suit and then put it under a precise amount of pressure, for a precise amount of time and at a precise temperature. This crushes all of the cells. The cells do not rupture; instead the cell membranes flatten against one another. A good example of why foam neoprene (also often called compressed neoprene) doesn t make a good drysuit is look at your old wetsuit. You ll notice that the knees and elbows get mushy. This is from the impact of your knees against a hard surface. Repeated impact, which is common to most dives, ruptures the cells inside. The cells eventually rupture into one another. This ensures your DUI CF200 will not change thickness at depth and, bottom line, your CF200 material will far outlast any compressed neoprene on the drysuit market. Your purchase today will be around far longer than your buddy s compressed neoprene drysuit. - Dick Long, President DUI.

43 Drysuits Prosport The dry suit for the 21st Century This sport dry suit is made out of a tough tri-laminate fabric with rubber taped seams that provide exceptional flexibility. Fabrics: Durable tri-laminate Latex neck and cuff seals Qualities: Stitched and rubber taped seams Warm neck collar for comfort Tough double thickness reinforced kneepads Removable braces for comfort Elasticated back panel Thermic neoprene lined boots Swivel inlet valve and hose Low profile variable cuff or dump valve Supplied with drysuit bag Colours: pic to come Black, navy, silver Sizes: XS, S, SM, M, MB, LM, L, LB, XL, XXL Ladies Prosport This dry suit is made of tough trilaminate material. The Ladies Prosport comprises a tough trilaminate fabric and rubber taped seams providing excellent flexibility. Fabrics: Durable tri-laminate Latex neck and cuff seals Qualities: Stitched and rubber taped seams Warm neck collar for comfort Tough double thickness reinforced kneepads Removable braces for comfort Elasticated back panel Fully adjustable waist Thermic neoprene lined boots Swivel inlet valve and hose Low profile variable cuff or dump valve Supplied with drysuit bag Colours: Purple, black Sizes: S, SM, M, LM, L. Made-to-measure also available pic to come

44 Boots Super Zip Perfect for the serious diver. Has a size 10 YKK zip. Features Sole Type: Flexible Vulcanised Rubber Sole Neoprene Thickness: 5mm (6.5mm Size 14-16) Heel Protection: Yes Toe Protection: Yes Top of Foot Protection: Yes Gusset Type: Full Neoprene Size Range: 4-16 Atlantic Boot Perfect for the serious diver. Features Sole Type: Flexible, non-slip Rubber Sole. Neoprene Thickness: 5mm & 6.5mm Heel Protection: Yes Toe Protection: Yes Top of Foot Protection: Yes Gusset Type: Full Neoprene Size Range: 5-13 Boots 45 Beach Walker Shoe Ideal for walking on the beach and over rugged terrain. Features Sole Type: Flexible Non Slip Rubber Sole Neoprene Thickness: 2mm Heel Protection: Yes Toe Protection: No Top of Foot Protection: No Gusset Type: Mesh Size Range: 5-12 CAD: Yes Gloves V-Lok-5 thermocline Glove Double nylon lined neoprene, wide gauntlet for easy donning and removal. Large Velcro wrist strap for restricted water flow. Features Neoprene Thickness: 5mm Finger Protection: Rubberised Coating for Protection and Grip Palm Protection: Rubberised Coating for Protection and Grip Wrist Closure: Cinches with an Adjustable Velcro Band Admiral Comfortable glove which offers warmth and excellent protection. Features Neoprene Thickness: 2mm Finger Protection: Rubberised Palm Protection: Synthetic suede palm is padded and re-inforced for protection and durability Wrist Closure: Velcro closure at wrist

45 Torches L ights fill in the colour. Colour is everywhere underwater. Without artificial light, the colours become muted as you descend. Different diving situations require different dive lights. Dive lights vary in brightness, beam pattern, burntime and size. Experienced divers have found that no single light is adequate for all situations. They dive with several lights. The lights shown here will suit a wide range of differing situations, above and below the surface. Lumen X4 and X6 Extraordinarily appealing, both these torches offer absolutely unequalled performance. The considerable power in extremely small dimensions make them the perfect lights for many different diving experiences. They boast a unique & innovative design, and can be housed in the BCD pocket. A powerful and concentrated band of white light makes it possible to light up fissures and recesses. The multi-mirror reflector has a great surface area: this guarantees maximum luminous yield and perfectly uniform distribution. The torches have a sliding switch, which is very easy to use. Lumen X6 Battery: 6 x C-size batteries Power: 130 Dimensions: 60 x 220 Duration: More than 6 hours Front Glass & Reflector: Thermoplastic Buoyancy: Negative Operational Depth: 120m Switch: Mechanical sliding Safety Lock: Yes Finishing: Multi-mirror Lumen X4 Battery:4 x C-size batteries for X4 Power: 110 Duration: More than 6 hours Dimensions: 60 x 155 for X4 Mini Vega Available in both rechargeable and battery versions. Offers a pistol-grip handle system, which is shaped to fit the hand s anatomy. To switch on and off, gently squeeze the trigger with your index finger. Compact dimensions: 145mm in length. Weighs only 1 013g in air. Diameter: 97mm. Features Duration (max power): 14 hours Rechargeable: 1 hour and 10 minutes Battery: 4 x Alkaline D-Cell; Rechargeable: 1 wrap of 4 x 4.4 Ahr Nicad D-Cell Recharging Time: 14 hours Charger: Yes Power: 5.9 watts; Rechargeable: 17 watts Front Glass: Thermoplastic Switch: Mechanical Trigger Max Depth: 120m Safety Lock: Yes - rotating Finishing: Multi-mirror Weight in air/water: 1 013g/ 25 with batteries; Rechargeable: 1 100g/112g Reflector: Thermoplastic

46 Knives Types of Steel used for Knives 316 Series Stainless A special blend of metals which offers the highest resistance to rust, this softer metal with a lower carbon content has a Rockwell B hardness of It can be sharpened to a good edge but will not hold the edge as long as harder steels. Since 316 is a comparatively soft metal it is not ideal for prying purposes but for active divers who cannot always rinse and maintain their gear, the 316 Series knives are recommended. All knives constructed of this material are guaranteed not to rust. 420 Series Stainless A fairly hard steel which has good overall characteristics and a Rockwell C hardness of 54 56, it can be expected to hold a sharp edge reasonably well. The tensile strength is high making 420 better for light prying applications. Due to the higher carbon content, unpolished areas may sometimes rust when exposed to salt water. To prevent rust the blade must be rinsed with fresh water and dried after each use and a protective oil coating applied. Knives 47 Professional Multi-purpose blade with different saw edges for different uses. Professional is available in 2 versions - with and without a hammer cap. Part of the Diablo range. Blade Size: 140x30x5mm Blade: Stainless steel, corrosion resistant and good edge maintenance Straps: Long-lasting, UV resistant, quick release and adjusting Techni-metal Stainless This alloy manufactured by Technisub offers a unique compromise between holding a keen edge and being corrosion-resistant. Hydralloy This proprietory metal of Underwater Kinetics combines a unique blend of alloys. For anyone not wishing to purchase titanium, this is an excellent choice as it not only holds a keen edge comparable to 420 SS but also resists corrosion like 316 SS. Titanium For divers who demand the ultimate in corrosion resistance, a keen and long-lasting edge and strength, titanium has the benefits of being the strongest of any steel, weighing 45% less, whilst being completely rustproof. Using a Knife Underwater Tool The Tool strong blade has 14 and 16mm slots to fit regulators and hose ends. Comes with a hammer cap. Blade Size: 140x30x5 mm Blade: Stainless steel, corrosion resistant and good edge maintenance Straps: Long-lasting, UV resistant, quick release and adjusting Mini Zak A small, effective and versatile knife. Designed especially as a BC knife. Its holster fits on any BC. Blade Size: 80x25x3,5 mm Blade: Special stainless steel Sheath: No mechanical lock Straps: Quick release for leg mounting, accessories for BC, hose mounting. 1. Ground in, the sharpened line cutter is useful for fast cutting of a monofilament or a nylon cord. 3. A knife can be shoved into a sand or mud bottom to hold against the current. 5. Serrations can be used to saw through submerged tree branches or similar underwater obstructions. 2. The large butt cap can be used to tap on your air cylinder for signalling to a buddy. 4.Sharpened edges or serrated edges can cut a large diameter rope of any kind. 6. Sharp knives can be used to dress out fish until they can be filleted.

47 Coast Bag The Coast bag is the ultimate snorkelling bag and backpack allin-one. It is constructed of heavy-duty 400 denier nylon material, which offers great durability. There is a separate front pouch in the front of the bag which is specifically designed for a diving mask. The mesh panelling on the bag s pouches, sides and top are for drainage and ventilation. The bag is prettioly multicoloured, comprising blue, silver and black. It is very practical - an ideal bag for diving. Bags 48 Classic Bag This classic style bag is strong, durable and very popular. Its strong fabric holds diving equipment with ease. PVC coated 1200 Decitex Nylon Measurements: 78cm x 40cm x 32cm Volume: 95 litres. The bag has 2 handy carrying handles as well as a shoulder strap There is one exterior pocket and one fin pocket. Regulator Bag The bag, specifically manufactured to carry a regulatior, is made of padded cordura. It has a reinforced shoulder strap and carry handle for both drainage and ventilation. There is an external pocket as well, which is ideal for a diver s logbook. Aqualung Traveller 350 Zipped, padded end-pocket and 2 outside fin pockets. The top flap has a 2-slider zip and can be rolled up and secured with velcro for ease of loading. Bag bottom is reinforced with a hard plastic sheet. Adjustable and removable shoulder strap. It has a zipped pouch that can be worn around the waist as a hipster bag. The bag has adjustable padded straps which can be deployed to make a back-pack. Full-length outside fin pocket. The main handles can be closed together with a padded grip, or tucked into protective pouches. Each end of the bag has a padded handle so that 2 people can carry it simultaneously.

48 Suunto in Sports 49 Suunto in Sports: Replacing luck with insight D iving has been at the heart of Suunto for years. At the same time, Suunto has developed its technology and gained understanding about many other sports too. The Replacing Luck philosophy has a strong input also for product development. In order to provide a user, professional or enthusiast, Suunto goes to the core of each sport they want to be involved in. This section shows you the sports and some of the products Suunto has right now in its product range. Cross Sports In the wilderness, anything can happen. Experience alone can t take the place of the right equipment. Suunto sport wristops for cross sports help you to understand more about your environment. Suunto can give you information about weather trends, altitude, ascent or descent rate, barometric pressure, compass bearing, slope gradient, not to mention your heart rate, during the activity. Suunto can make your stay in the great outdoors better and, above all, safer. Compasses This is where the Suunto story started. Suunto s precision instruments for boats and orienteering show how innovation and design meet years of experience. Suunto s compasses are known for their reliability, durability and accuracy from the waves of the Atlantic Ocean to the mountains of Himalaya. Golf Suunto G9 makes it possible for you to become a better golfer by knowing more about your performance and the shot at hand. It tells the distance of each shot, counts the aggregate distances for how far you hit with each club, keeps score and stores info for later analysis. It also lets you check the weather. Ideal for Cross Sports - Suunto X6HR Marine Suunto M9 will make you sail faster and it will make you a better sailor - you ll know more about the weather and what to do next. Suunto M9 can give you the position, the right course to the destination without getting lost and wherever you are on the boat, you can see your speed on your wrist. It doesn t matter if you re racing to the next post or just enjoying yourself, Suunto can help you stay in control. Suunto G9 - a golfer s dream Suunto M9 for Marine sports Snow Sports If you re a pro or just enthusiastic about skiing, Suunto will tell you more about the slopes, it will store your skiing data and make you a better skier. In the mountains heavily changing weather conditions, one shouldn t rely on luck. Different alarms will alert you at target altitudes - for instance, your Suunto instrument will warn you of too rapid an ascent and it will indicate rapid drops in pressure. As you ll know more about the surroundings, your performance will improve. Suuntosports.com Suuntosports.com is a free international Web community for Suunto device users and sports enthusiasts. If offers a number of features that help you make the most out of your sport and your Suunto instrument. The website lets you upload & share info from existing Suunto Dive Manager logbooks or the dive computer itself. You can edit and publish the uploaded info to the entire community or to specific groups. By logging into suuntosports.com, you get the latest information on diving trends, events and people. Share info and learn more in the discussion forums and groups. The website allows users to form groups for people with the same interests. So, you can create a group of all your diving friends, and share info about your dives, give advice and more. All groups have a home page displaying info about events and news, a notice board & more. Group members can also use group-specific bulletin boards, chats & group calenders, add links & create group activities. Suunto S6 - a skier s dream instrument