CM O2PTIMA Rebreather

Incredibly adaptable, self-contained, and perfect for travel, the O2ptima CM will redefine your concept of rebreathers. Its chest-mounted design attaches effortlessly to nearly any harness, making it compatible with your existing open-circuit setup – whether you dive sidemount, back-mounted doubles, or single tank. Any harness with two high shoulder D-rings and two waist D-rings will work. Plus, you can add or remove the rebreather on the fly – even underwater!

The self-contained design uses an onboard oxygen cylinder, so you only need one external connection for diluent from your current gas supply.  Just add a BC hose from your first stage to power the CM, and you're ready to go! This simplicity opens up a world of possibilities:

• Add it to your single tank rig for a deep morning dive, then remove it for a shallow afternoon reef dive.
• Use it instead of a stage bottle for longer penetration in overhead environments, while still having plenty of bailout gas.
• Detach and stage it underwater to navigate tight restrictions or for later decompression, then easily pick it up on your way back.

Weighing in at just 14.4 lbs (without scrubber material or oxygen cylinder), the O2ptima CM is the perfect travel companion. Its frameless design allows you to roll it up and stow it in your carry-on with ease.

Unit Includes:

• Calibration Set
• Disinfectant
• Shearwater HUD
• Petrel 3 Controller
• Packable Scrubber
• Oxygen Regulator
• CM Unit

*A Cylinder Kit & NERD 2 Controller can purchased in addition to this CCR.

Notes:

• All CCR purchases must be shipped to a certified CCR diver for the specific unit or to the student's CCR instructor.
• Units are built to order.

• Cutting-Edge Electronics: Powered by state-of-the-art Shearwater electronics for precise control and monitoring.
• Effortless Breathing: Shortest breathing loop on the market, coupled with dual counterlungs for minimal work of breathing.
• Versatile Scrubber: Fully compatible with MicroPore Extendair cartridges and granular absorbent, offering flexibility and long dive times.
• Compact & Rugged: Designed for tight spaces and built to withstand demanding dives.
• Easy Maintenance: Threaded loop connections make cleaning and maintenance a breeze.

• Electronics: Redundant Shearwater DiveCAN system with Heads-Up Display (HUD) and Petrel 3 controller (NERD controller optional).
• Counterlungs: Chest-mounted with 6-liter total loop volume.
• Scrubber: Dual-use canister compatible with Micropore ExtendAir SR-081C cartridges or 5lbs of 812 mesh granular absorbent.
• DSV: Dive Rite DSV standard.
• MAV/ADV: Oxygen Manual Add Valve (MAV) and Automatic Diluent Valve/Diluent Manual Add Valve (ADV/MAV).
• Water Traps: Dual water traps located in counterlungs and scrubber endcap.
• Oxygen Regulator: XT1 or FT1 first stage.
• Sensors: (4) AI R22 Oxygen Sensors.
• Protection: Rhinotek soft cover for abrasion resistance.
• Hoses: 12” (30 cm) loop hoses standard, 10” (25 cm) hoses optional.
• Compatible Cylinders (not included): AL 13 (recommended), AL 20, AA LP 27, AA HP 32, AA LP 13.
• Harness Compatibility: Any harness with 2 high shoulder D-rings and 2 hip D-rings. Nomad LS recommended.
• Weight: 14.4 lbs without oxygen cylinder or scrubber material.