EQUIPMENT - ACCESSORIES
Diver's Notebook
Even the most casual diver will appreciate the advantages of the Halcyon diver’s notebook. This high quality design provides easy access to pencils, notes, tables, and accessories. Whether diving or training in overhead environments such as PADI Cavern, TDI Intro Cave, or TDI Cave we need to carry slates. Unlike open water diving, wrist slates pose an entanglement hazard. This is a safe and highly developed form of written communication standard among tech, wreck and cave divers. Our Tec Deep and Cave Instructors also use the diver's notebook to track student progress as well at tracking critical areas that need to be discussed post-dive. A professional touch for the thorough technical diver or instructor.
Key Features:
- Thousand denier nylon cover with replaceable underwater paper
- Two clear pockets accommodate a compass and tables or other accessories
- Elastic bookmark allows you to mark a place for quick reference
- Elastic pencil holders
- Secure closure loop and shock cord attachment for bolt snap

Pathfinder Reels
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.
Students purchasing their equipment for the first time can be assured that the pathfinder reel will stand up to any environment they may encounter along the way. Perfect for Cavern, Cave, Wreck or to fully equipped the Tec Deep Diver. The cleanest and most efficient reel we have in our arsenal.
Key Features of the Pathfinder Reel
- 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 3 ¾” double ended bolt snap for easy attachment
- Pathfinder reels come with #24 braided nylon line and are available in the following sizes:

Primary Lights
Halcyon offers a primary light for every occasion; whether you’re a recreational diver or a technical explorer, we have high-quality, underwater lighting to support your diving goals. Your idea of a perfect dive may involve lighting up a coral reef during a favorite night dive; finding a previously undiscovered wreck or cave might fulfill your aspirations. Halcyon’s broad range of products supports the enthusiast and professional with the best possible value.
All Halcyon Primary Lights come standard with the following:
- Nickel-plated brass sealing glands and fittings
- Strain-relief fittings on the cords
- Larger diameter, hands-free Goodman handle; easy to use with dry gloves
- Stainless Steel locking latches
- Lifetime warranty on canister
- Depth rated to 300 ft / 90m
Choose from our Explorer or Eos line of primary lighting. The Explorer line offers our latest exploration grade light with reinforced NiMH battery packs. The Eos series offers Halcyon quality at a lower entry price and features an LED light head.
The 21w HID lamp is available with three different sized batteries:
- 4.5 amp hour (2 hr burn time)
- 9 amp hour (4 hr burn time)
- 13.5 amp hour (4 hr burn time)
The 1450 lux, 600 lumen EOS LED light is also available with three battery sizes but because of the lower power consumption the battery burn time is greatly increased:
- 4.5 amp hour (5 hr burn time)
- 9 amp hour (10 hr burn time)
- 13.5 amp hour (14 hr burn time)
Prices can vary and discounts are available with large purchases, please contact us for current prices or discounts on packages including other equipment or training.
Scout Back-Up Lights
Halcyon’s Scout lights redefined industry perception and continue to offer amazing value with solid construction, well-designed components, and ongoing enhancements. The Scout light is machined from a solid piece of delrin with stainless steel internal components; the exterior is shaped into a unique pattern for easy gripping. Meanwhile the bulb cover is manufactured from Lexan—the same material used for bullet-proof glass.
The Scout can be used as a backup to one of the Halcyon primary lighting systems for training programs such as cavern, intro cave or cave. In these overhead environment courses all divers must have backups (1 for cavern, two for cave) to ensure a safe, bright dive. For a diver starting as a technical diver or cavern diver the scout is also acceptable to be used as a primary, these high output and long burn time will please any technical diver.
Key Features of the HP LED Scout Light:
- Our brightest Scout light to date
- High Performance (HP) output in a 3 "C" cell, hand held light
- 4 hour run time, super bright light output at 375 Lux / 190 Lumen
- HP Upgrade Module available and fits 3 "C" cell Scouts only
LED Scouts deliver a tightly focused beam of highly visible white light.
Key Features of the XP LED Mini Scout Light
- Extended performance (XP) output in a 2 "C" cell, hand held light
- 6-8 hour run time, bright light output at 125 Lux / 130 Lumen
- P Upgrade Module is available and fits 2 or 3 "C" cell Scouts

Halcyon "H" Knife
The titanium Halcyon "H" knife consistently proves to be one of our most popular accessories. The sturdy nylon pocket mounts on the waistband of the Secure Harness and is always within easy reach. The Halcyon knife sheath wraps around the knife’s handle with overlaying Velcro straps to secure the blade during a dive.
Every technical diver needs to carry at least one if not two cutting tools such as the TDI Intro Cave and TDI Full Cave program. Our Technical Instructors have been diving in Thailand for years in areas such as Koh Tao, Phuket, Khao Sok National Park, Pattaya and more. Making tech diving and cave diving a way of life we can highly recommend this streamlined efficient tool.
Key Features:
- 2.5” titanium blade, 7” total length
- Top serrated edge in addition to a straight edge and line cutter
- Stainless Steel strike on the end of the handle can be used for signaling against a tank or as a blunt tool/li>








