Shearwater Perdix AI Dive Computer

Shearwater Perdix AI comes standard with no transmitter. During checkout please select no transmitter or Add Transmitter for $350.

Shearwater is proud to introduce the newest member of the Shearwater family: The Perdix AI. Offering all of the same great features of the Perdix, the Perdix AI uses its large, easy-to-read screen to clearly display the tank pressure as well as your gas time remaining (GTR). The Perdix AI is capable of connecting to either one or two transmitters giving the diver the option to monitor both tanks or dive sidemount.

The Perdix AI dive computer from Shearwater search, is a robust dive computer for technical divers of all levels, and ready out of the box for air, nitrox, and trimix gasses. The Perdix AI is the newest offering from Shearwater, similar in design an operation to the Petrel line of dive computers, but in a smaller form factor.

Its simple 2-button interface and easy to navigate menu structure allows for intuitive and quick operation underwater. The Perdix AI features a large, high resolution LCD screen is both easy to read, and power efficient. The Perdix AI operates on any AA sized battery, and is user-replaceable in the field with minimal effort. The included digital compass is both accurate and smooth, and Bluetooth integration offers download and upload capability from Mac, PC, and iOS devices.

The Perdix AI may be used for open-circuit and closed circuit-diving, as well as gauge mode if desired


The small form factor of the Perdix AI does not allow for an external connection for rebreather oxygen cell monitoring. Despite this, closed-circuit rebreather divers find the Perdix AI more than adequate for CCR decompression calculations using a manually entered PO2 setpoint.

In closed-circuit mode, the Perdix AI stores banks of 5 closed-circuit diluent gasses, as well as 5 open-circuit bailout gasses. In open circuit mode, 5 bottom mixes, and 5 decompression gasses may be stored. Gas switching is performed quickly and easily with minimal button pushes. Gasses may be added or edited while underwater – useful for lost gas scenarios.

Decompression Algorithm

The Shearwater Perdix dive computer features the following modes of operation:

OC Rec - 3 gas nitrox recreational computer
OC Tec - Multi gas, trimix decompression computer
CC INT - Closed circuit fixed PPO2
Gauge - Bottom timer with stopwatch and dive logging

All Shearwater dive computers use Buhlmann ZHL-16C as the decompression algorithm. User adjustable conservatism may be achieved by manipulation of gradient factors settings in the computer’s settings. An optional VPM-B algorithm may be purchased if desired, and installed in the field.

The 2.2" Color LCD display is easy to read, with high contrast, and automatic screen brightness. The display may be customized with user-defined font colors, and may be inverted for those who wish to wear the Perdix AI on their opposite arm. Several layouts may be selected from, and fonts may be customized for size and color.


The user interface is simple to use with adaptive menus. Commands are entered with piezoelectric buttons. Warnings are clear and concise using color-coded fonts. A simple 2-button bailout allows for quick and easy changes to open-circuit. No confusing icons are used; rather the Perdix AI navigation is done with plain-language. Divers have a choice of metric, or imperial units.


The Perdix AI operates with any AA-sized battery. Shearwater Research recommends the use of Duracell Coppertop alkaline batteries for their widespread availability, and reliability. Shearwater dive computers will operate about 30 hours on a quality alkaline battery, or up to 95 hours using Saft LS14500 batteries. Li-Ion, NiMH, Photo Lithium 1.5 and Zinc-Carbon 1.5 batteries may also be used.

The Shearwater dive computers also features a super-capacitor to keep track of your tissue loading in the event a battery change is required between dives. This capacitor holds enough energy to maintain tissue status for 15 minutes. This means that if your battery change takes less than 15 minutes you can continue with repetitive dives, and don’t have to reset the date and time.

The Shearwater Perdix AI features a 1000-hour dive log, which may be downloaded via Bluetooth to a Mac, PC or iOS device using free Shearwater Desktop. The Bluetooth feature may also be used to upload firmware updates, when available. 

Halcyon CINCH Quick-Adjust Harness Upgrade

Key Components of the Cinch Quick-adjust Harness

• Cinch Quick-adjust harness; infinite adjustability with a simple push or pull of the webbing
• Available in Standard and Small sizes to fit our stainless steel or aluminum Halcyon Backplates
• Can be used with single or double tank BC Systems
• Seamless use with Halcyon ACB weight pockets, canister light, and hip D-ring

Components include:

• Cinch Adapter Plate (Patent pending)
• 12' of replacement H Webbing
• ACB Weight Pocket Adapters
• D-ring Assembly
• Light Retainer Assembly
• SS Bolt Kit
• Quick-adjust Crotch Strap
• Double tank Bolt Extender

Description

Poseidon Xstream Deep Regulator is the regulator of choice for any demanding divers that dive with air or trimix with a maximum of 21% oxygen. New Poseidon Xstream Regulators come with an OPV (over pressurization valve) in the 1st stage, and use a standard LP hose with an adapter on the 2nd stage. Excellent choice for rebreathers.

• Outstanding performance
• Certified to 200 meters / 656 ft!
• Product: 0100-000

Features

• Will give you enough air regardless of depth.
  
• The obvious choice for tech divers.
• Small, light and loaded with high tech. No up or down, side exhaust and can handle all conditions.
• Excellent cold water regulator, perfect for PSD divers.
• Trimix and air
• 5 LP and 2 HP-ports
• Low WOB - Servo assisted
  
• Certified to 200 m / 656 ft
• Delivered with a 70 cm hose
  

XSTREAM 1ST STAGE

• The first stage is a balanced rolling diaphragm ball valve producing extreme leak tightness. Conventional designs are sensitive to wear, misalignment, and manufacturing precision. A ball always finds its correct place.
• Combined with the 2nd stage, the enormous capacity of the 1st stage make the regulator meet the EN 250 breathing performance requirements even at as low as 16 bar (232psi) cylinder pressure. This means that you gain an extra 34 bar (493 psi) of gas compared to most other regulators!
• The Xstream construction requires less o-rings than any other regulator. Except for sealing the blind screws (3-4), there is just 1 sealing o-ring (semi-static) in the bottom mounted versions and 2 in the side mounted.
• The hose routing is developed to be optimized for a redundant system, using two regulators. The HP ports are positioned to accommodate the use of gas monitoring computers e.g. first stage mounted HP sender/receive units

XSTREAM 2ND STAGE
A number of features greatly improve safety and ease of use:

• If debris has degraded the function of the exhalation check-valve, it can easily be reached and corrected by just twisting off the diffuser. It is the only part which needs to be disassembled, and if it gets lost during the operation, the regulator will continue to function but must only be used for immediate ascent.
• In case of a malfunction in the 1st stage causing excessive intermediate pressure, the safety valve integrated in the1st stage will bleed off the excessive gas. This system both indicates to you that something is wrong so that you can take action, and because of the up-stream servo-valve technique, allows the regulator to continue to breath normally.(conventional downstream regulators are likely to free-flow in such a situation).
• Integrated surgical hose fixing points safely secures the regulator to the diver, but in an emergency allows a distressed buddy to retrieve the regulator without undue stress to the diver.
• The dead air space is low at just 49.5 ml (3 in3) making CO2 figures (hypercapnia) minimal. Inhalation resistance is incredibly low and unaffected by depth and breathing pattern.
• Because of the unique Poseidon valve technology, there is no need for external adjustments.
• Xstream is fitted with the new ergonomic mouthpiece Poseidon AIR, with asymmetrical lugs for the most comfortable bite.
• All diaphragms are protected so that a strong current or using a scooter or tug does not affect either inhalation or exhalation.
• A minimal number of moving parts, coupled with thermodynamic engineering, ensures the safe use in an extremely cold environment.

POSEIDON T.D.A

• Xstream has a built-in Poseidon T.D.A, ThermoDynamic Anti-freeze, which requires no maintenance. It is always there, doing the job. It is thermodynamically protecting the parts which must not freeze.
• It is identified by the large slots in the cover, allowing the heat energy of the water to re Technical Specs Approved to depth (m/f) 200/656 (gas dep.)
  IP (bar/psi): 8,5 / 123
  Air:Yes
  Trimix: Yes (max 21% oxygen)
  Nitrox 50% No
  Oxygen (99,95%): No
  Working pressure 300bar: Yes
  Built in anti freeze prot.: Yes
  O-rings: Nitril/EPDM
  US Navy tested: Yes
  Oxygen Approved (EN738-1): Nej
  NORSOK approved: Yes
  EN250 approved (cold water): Yes
  CE Cold water approved: Yes
  2nd stage Xstream Deep Mk3
  Color Black
  Material ASA/TPU
  Stainless steel
  Brass
  Weight (g/lb) 152/0.33
  Volume (ml/cuin) 49,5/3.0
  Valve technology Upstream
  Flowrate (l/cuft per min) 2150/76
  Oxygen cleaned No
  Servo assisted valve Yes
  Overpressure valve built in to the LP hose No
  Dis-mountable w/o tools Yes
  Push button on side Yes
  Swiveling Yes
  Non keyed (no up or down) Yes
  
  Xstream Deep first stage
  Color: Black
  Technology: Roll diaphragm
  Material: Brass
  Valve technology: Spheric
  Wheel mounted: Side
  LP ports 3/8: 5
  HP port 7/16: 2
  Flow rate (l/min): 5500
  O2 clean: No
  DIN G5/8: Yes
  EN144-3 compatible: No
  Separate yoke: Accessory
  Zytel HP seat: Yes
  Built in overpressure valve: Yes
  Anti-freeze protected: Yes
  Xstream Deep Mk3

Folding Wrist Slate

P/N AC456

TDI Nitrox Manual with Knowledge Quest

The Nitrox Manual is the text-book literary assistant to the TDI Nitrox certification course. In many respects, nitrox is just a tool that can make your diving more enjoyable. Similar to an additional piece of equipment, once you have completed this TDI course and logged your first few nitrox dives, you will understand what a valuable tool it is. Nitrox will add useful options and flexibility to your dive planning and execution.

Using the Nitrox Manual as a reference, students may utilize the Knowledge Quest Work Booklet by answering the provided questions with the most appropriate and accurate answers. The Knowledge Quest is designed to be used as an assessment for enrolled students and their respective instructors.

*The manual alone is not a substitute for qualified Instructor Certification.

OxyCheq Expedition O2 Analyzer

Features:

• Easy Operation Compact
• Durable O-Ring Sealed
• ABA Case splash proof
• Built in Flow Restrictor
• Gas calibration for air or pure oxygen
• On/Off/On with backlight
• Easy sensor and battery replacement
• Fast response long life sensor
• Temperature Range 0-50c (32-122F)
• Expected battery life of two years / AAA Batteries
• Low Battery Warning
• Resolution 0.1% O2 Measurement Range 0.1-100% O2
• Compact carry and storage case
• Replacement Sensor: O-13
• 1 year warranty on instrument, 12 months on sensor
• Approximate Dimensions: L3.5" x W2.5" x H1.6"

Download the manual (PDF)
We heard they wanted a durable, compact oxygen analyzer with a user replaceable sensor, readily available batteries, a splash-proof case and and at a reasonable price. The OxyCheq Expedition Oxygen Analyzer meets this criteria and more. We designed an electronic circuit that is easy to calibrate and uses a long life sensor. We used most reliable parts made and enclosed the electronics and sensor in a compact, sturdy, custom molded ABS case. The case, digital panel meter, potentiometer, on/off switch, and sensor, are sealed to protect the electronics inside the enclosure from harsh elements. It is splash-proof. The "Expedition" comes with a compact carrying case with foam to protect your investment. It also has room for other items such as the optional remote flow restrictor, batteries, or a sensor. Both enriched air divers and technical divers will truly appreciate the compact size, durability, performance, ease of operation, reliability and sensor life. The Expedition set the standard in performance, price and quality for oxygen analyzers for the diving community. The OxyCheq Expedition Oxygen Analyzer uses a removable cap with a built-in flow restrictor. Although not necessary, you can also attach a 2-3 lpm flow restrictor to the sensor cap/flow restrictor if desired. Calibration can be made in air or pure oxygen and takes seconds. Once the sensor is calibrated, analyzing gas is easy. The user simply opens the cylinder valve until a slow, constant hiss is heard, places the sensor cap restrictor over the gas, and waits for a constant reading. The case and cap are extremely durable and there are no pliable rings to wear out or parts to break off. The sensor cap/restrictor also has the ability to sense gas remotely with an optional flow restrictor that can connect to a low pressure bc hose.

Changing the sensor or batteries is very easy. When you remove the back of our case, all of the electronics are located on the front half of the case. There are no wires attaching the back to the front that can result in strains on the leads when replacing the sensor or batteries.

In limited light conditions and if desired, the user can flip on the backlight.

The OxyCheq Expedition Oxygen Analyzer was designed with simplicity in mind. Once out of the box, the average user will be able to sample gas in minutes.

The "Expedition" was built to last and perform ... and it does. We did not take short cuts or use inferior parts to lower the quality of this unit, we simply took less profit. OxyCheq is known for our personal service and attention, we built the "Expedition" for you and have no doubt you will be extremely pleased with your purchase of this oxygen analyzer.

Flow restrictors are shown for illustration purposes only.

Hollis H-O2 DIN FIRST STAGE Regulator

With the Bulletproof Design of the Hollis HP5 Non-Balanced Flow-By Piston First Stage the HO2 First Stage is Certified for up to 100% Oxygen Service thanks to Highly Specialized Component Materials and Manufacturing Processes. Cleaned and Assembled in a Clean Room Environment with Specially Designed Materials, Halocarbon Based Lubricants and Color-Coded for Easy Identification.

The Flow-By Piston Design is the only true Fail-Safe First Stage Design on the market. The Piston will automatically move Downstream from the High Pressure Air coming from the Scuba Cylinder if there is an unexpected malfunction of the High-Pressure Seat. This feature guarantees a constant Gas-Flow to the Second-Stage Regulator. The Regulator First Stage weighs 8.3 oz (235.3 g).

• Bulletproof Hollis HP5 First Stage Design
• Non-Balanced Flow-By Piston
• Fail-Safe First Stage Design
• 300 BAR/4500 PSI DIN Connection
• DIN Hand-Wheel Connector: Oxygen Green for Easy Identification for Oxygen-Use-Only
• Material: Durable and Corrosion Resistant Marine-Grade Chrome Plated Brass
• 4 LP 3/8″ Threaded Ports
• 1 HP 7/16″ Threaded Port

SUBGRAVITY BACKPLATE HARNESS SLIDER

A simple solution that allows the use of a backplate and continuous webbing harness while still allowing adjustability.

• Impact resistant and lightweight
• Simple Installation
• Does not compromise the integrity of the 1-piece harness
• New v2.0 improves the performance when used with doubles
• Sold individually
• Lifetime warranty

Stage Bottle Strap Kits

• Larger diameter black handle is easier to carry.
• A 3-bar slide allows for length adjustment.

Includes:

• 2 ea. 4” jumbo stainless steel bolt snaps
• 1” wide, adjustable length, nylon webbing handle (2200 lbs. tensile strength)
• 11” piece of black tubing to create a comfortable carry handle
• Rugged, elastic EPDM hose retainer with easy grip tab
• Marine grade stainless steel cylinder clamp
• Nylon tube webbing to cover cylinder clamp
• 2” piece of black PVC tubing to cover the cylinder band adjustment screw

SS440 - 4.4” diameter cylinders (aluminum 19)
SS525 - 5.125 to 6.0” diameter cylinders (aluminum 40)
SS725 - 6.5” to 8.0” diameter cylinders (aluminum 80)

• (2) 4" Jumbo stainless steel bolt snaps
• (1) 1" Wide nylon webbing handle 2200 lbs. tensile strength
• (1) 11" piece of clear plastic tubing to create a comfortable carry handle
• (1) Marine grade stainless steel cylinder clamp
• (1) Nylon tube webbing to cover cylinder clamp
• (1) Rugged 2" wide elastic EPDM hose retainer with easy grip tab
• (1) 2" piece of black PVC tubing to cover the cylinder band adjustment

Learn all about Technical Dive Equipment by taking aTDI Intro To Tech Course!

• Stage Bottle Strap with heavy duty handle
• 2 Large Stainless Steel Bolt Snaps
• Great for cold water use

• 45 Degree Billy Ring
• 316 Stainless Steel

Oxycheq Stainless Steel Backplate

• Beautifully machined series 316 / 1/8" stainless steel that has been laser cut.
• Uses Standard 2-inch Webbing.
• Slots for Cam Bands for Single Tank use.
• Angled shoulder straps for a great fit.
• Holes are standard 11 inch center.
• Plate is 15" long
• Weight: 5 pounds

Oxycheq Raider III & IV Light Sock

The Raider III Light Sock is ambidextrous (both bands), designed for Open Water Divers and Technical Divers. When in use the diver maintains full dexterity of the hand. Perfect for when traveling. Easy to use and remove and it will not fall off the hands when properly adjusted. It fits Intova size lights or similar that have a smaller diameter.

The Light Sock is adjustable to fit a wide range of hand sizes via the double Velcro closure and adjusting the bungee length. The bungee works well with drysuits. When not in use it can be folded and stuck in a pocket and it reduces weight and packs easy for travel.

The Oxycheq Raider III Light Sock fits a smaller dive light than the Oxycheq Raider I Light Sock.

Made In USA

HOG D3 SEALED ZENITH REGULATOR SET

The Hog D3 Sealed Zenith Regulator Set is the two most popular of the Hog regulator line up combined together to make one amazing high performance regulator.

HOG’s newest and best Diaphragm Regulator Yet. Balanced Diaphragm, 2 HP and 5 LP Ports, Compact size, routes like a balanced piston but is a Diaphragm! 5 Port LP Swivel rotates 360 degrees with hoses, unlike most tech swivel regulators. Higher performance than the HOG D1.

Hog Zenith Second Stage

New Silicone Front cover design gives the advantages of a soft front cover without the "Rot away" feature other brands offer in their Front covers. New poppet material reduces friction in the barrel increasing performance.The HOG Second stage gives you ergonomic one-handed access to both the inhalation effort knob and the dive/predive venturi adjustment lever, making perfect regulator tuning easy. The rigid second stage face cover and the positive-action purge button with diaphragm protection reduces the possibility for current-induced free flows and completely eliminates the possibility of diaphragm pinching seen with many flimsy rubber purge covers. The most important feature of the HOG technical second stage is the amazing breathing performance! The metal gas tube and precision components of this second stage allow for precision tuning for extremely easy breathing while also retaining heat and moisture from exhaled breath. This provides increased resistance to freezing in cold water and less dry mouth. The dual diver-adjustable features allow for condition-specific tuning during each stage of the dive.


Hog D3 Sealed Zenith Regulator Set Features:

• High-Pressure Ports: 2 HP Ports
• Low-Pressure Ports: 5 LP Ports
• First Stage Type: Diaphragm, Balanced
• Environmental Kit
• Swivel 1st Stage
• Second Stage Type: Balanced, Adjustable
• Venturi: Yes
• Second Stage Swivel: Yes
• Silicone front cover

SS Book Screw

P/N HL510

The Extended Range and Trimix Manual is the text-book literary assistant to the TDI Extended Range and Trimix certification course. Extended Range diving is exploring the limits of up to 180 FSW (55MSW) for air as a bottom mix and up to 200 FSW (60 MSW) for basic trimix. Within this range, the diver can explore many additional sights that are beyond the standard recreational Open Water limit of 130 FSW (40 MSW).With the Extended Range course behind them, a diver will be properly equipped to evaluate and plan dives where some of the less frequently visited wrecks lie, some potentially rare fish can be sighted, as well as interesting geological features.

The Equipment Service Technician Manual is the text-book literary assistant to the TDI Equipment Service Technician certification course. This course will give an in-depth description of various topics regarding the handling of oxygen and system design, different blending methods, and finally oxygen cleaning practices.

The Nitrox Gas Blending is the text-book literary assistant to the TDI Nitrox Gas Blending certification course. This course will grant each student with an in-depth knowledge of various topics regarding the use, and preparation, of various diving gases used within the scuba environment. Detailed chapters include information on scuba gases, oxygen handling & system design, blending techniques, gas mixing mathematics, and finally mixing charts and various necessary mathematical formulas.

The Decompression Procedures Manual is the text-book literary assistant to the TDI Decompression Procedures certification course. TDI has brought this course to the recreational diver in response to the demand and desire for more information. The Decompression Procedures course is available to two classes of divers. Recreational divers can take the course to develop new skills and understanding. Recreational-Technical divers can take the course during the series of courses available through TDI, usually between Advanced Nitrox and Extended Range and Trimix.

TDI Intro to Tech Manual w/ KQ

The Intro to Tech Manual is the text-book literary assistant to the TDI Intro to Tech certification course. The purpose of this manual is to introduce the sport diver to the concepts of technical diving. It focuses primarily on defining the various activities, explaining the equipment, outlining the options, and previewing the information that will be further addressed during training in each specialty area.

Using the Intro to Tech Manual as a reference, students may utilize the Knowledge Quest Work Booklet by answering the provided questions with the most appropriate and accurate answers. The Knowledge Quest is designed to be used as an assessment for enrolled students and their respective instructors.

*The manual alone is not a substitute for qualified Instructor Certification.

The Nitrox Manual is the text-book literary assistant to the TDI Nitrox certification course. In many respects, nitrox is just a tool that can make your diving more enjoyable. Similar to an additional piece of equipment, once you have completed this TDI course and logged your first few nitrox dives, you will understand what a valuable tool it is. Nitrox will add useful options and flexibility to your dive planning and execution.

Using the Nitrox Manual as a reference, students may utilize the Knowledge Quest Work Booklet by answering the provided questions with the most appropriate and accurate answers. The Knowledge Quest is designed to be used as an assessment for enrolled students and their respective instructors.

Halcyon Gauge (SPG)

Halcyon pressure gauges are as reliable as they are accurate. We start with an industrial-strength spring designed for pressures beyond 5,000psi (400bar), high-quality materials, and a highly visible, luminescent face make this a common favorite among divers in all environments. Pick from our Standard or Stage pressure gauges.

The weight and size of our Standard SPG gauge make it well suited as a primary SPG. The large, clear display is easy to read in all diving conditions.

Key Features of the Standard SPG:

• Calibrated for bar (0-360) or psi (0-5500)
• Nickel-plated brass with mineral glass lens
• Size - Gauge Face 2"

Technical divers with multiple stage/deco cylinders often prefer a small, light SPG. Our stage pressure gauge is perfect for just such an application.

Key Features of the Stage SPG:

• Slightly smaller than our standard SPG
• Light weight helps balance stage/deco bottles
• Two models calibrated either for bar (0-400) or psi (0-5000)
• Nickel-plated brass with acrylic lens
• Size - Gauge Face 1 3/4"

 

Halcyon Defender Pro Spool

Halcyon Manufacturing is well known for guideline device innovations, having pioneered some of the most unique designs in technical diving. Now we are pleased to announce the dawn of a new generation of guideline devices. The new Halcyon Defender Pro series of guideline devices expands upon the time tested utility of Halcyon Defender spools by providing enhanced flexibility and unique operational advantages.

The Defender Pro series provides a wide range of valuable features:

• Nearly indestructible Delrin design for years of trouble free operation
• Solid center reduces spool size, enhancing portability and ease of operation
• Solid center eliminates the risk of catching a finger during deployment
• Easy Grip™ adaptor provides great grip even with gloves; free spin and fully locked positions
• Adaptor can be removed for classic mode and retrofit to any size Defender Pro
• Available in 100, 150 and 200 foot sizes (30m, 45m, 60 meters) with #24 line

Halcyon Pathfinder Primary Reel

Pathfinder reels are designed for the demands of deep wrecks and long caves and have a long-standing reputation for excellence in quality and design. Halcyon Pathfinder reels result from thousands of hours in recreational, technical, and cave diving environments and have consistently proven their reliability with a unique and trouble-free design.

• The handle is machined from aluminum and hard-coat finished for durability and proper weighting.
• Entanglement risk is nearly eliminated with by a precision-fit handle while allowing easy access to the spool.
• Knurled lock-down screw, allows easy operation in cold water
• Stainless steel double ended bolt snap for easy attachment
• Pathfinder reels come with #24 braided nylon line and are available in the following sizes: 400 ft, 800 ft, 1200 ft

TDI Decompression Procedures Student Manual w/ Knowledge Quest

TDIs latest version of the Decompression Procedures Manual is the text-book literary assistant to the TDI Decompression Procedures certification course. TDI has brought this course to the recreational diver in response to the demand and desire for more information. The Decompression Procedures course is available to two classes of divers. Recreational divers can take the course to develop new skills and understanding. Recreational-Technical divers can take the course during the series of courses available through TDI, usually between Advanced Nitrox and Extended Range and Trimix.

The TDI Decompression Procedures course prepares you for planned staged decompression diving. With a maximum operating depth of 45m/150 feet, this course is your first step beyond the normal sport diving limits. The TDI Decompressions Procedures course combined with the TDI Advanced Nitrox course form the foundation of all other technical courses.

*Copyright: 2011
*Version: 0814

*The manual alone is not a substitute for qualified Instructor Certification.

TDI Advanced Nitrox Manual with Knowledge Quest

The Advanced Nitrox Manual is the text-book literary assistant to the TDI Advanced Nitrox certification course. This TDI course will help develop the mindset and practical skills necessary to optimize Nitrox breathing mixtures for divers. After completing the course, participants will be able to make choices based on operational and logistical concerns in order to best suit their mission parameters and personal needs. The Advanced Nitrox course is the first step in taking scuba beyond the usual sport-diving applications.

Using the Advanced Nitrox Manual as a reference, students may utilize the Knowledge Quest Work Booklet by answering the provided questions with the most appropriate and accurate answers. The Knowledge Quest is designed to be used as an assessment for enrolled students and their respective instructors.

*The manual alone is not a substitute for qualified Instructor Certification.

Halcyon Stainless Steel Backplate with Quick Adjust Harness

The Halcyon Secure Harness provides an infinitely adjustable fit, eliminating the uncomfortable movement found in conventional “jacket” buoyancy compensators. Easy and fluid adjustment with the Quick Adjust System. makes getting into and out of the harness easy. This perfectly tailored fit means that divers of all sizes can enjoy a custom diving configuration that supports unparalleled stability and diving comfort. Moreover, this unique system is easily convertible, allowing one to adjust buoyancy or quickly switch from singles to doubles. Regardless of your future aspirations, this flexibility means your diving system can grow with you. From your first open-water dive to your 100th deep dive, Halcyon is with you all the way.

• Secure, continuous webbing provides a custom fit; eliminates unwanted tank movement
• Pre-bent shoulder D-rings facilitate quick storage of accessories from Scout lights to stage bottles
• Complete adjustability of D-rings eliminates inappropriate attachment points.
• EPDM elastic bands help secure accessories
• SS waist buckle
• Adjustable crotch strap enhances stability, nearly eliminating unwanted tank movement.