Hollis Prism 2 eCCR Tek w/Petrel

Availability: Out of stock

The Prism 2 is a fully closed circuit Rebreather, ideal for exploring open ocean, cave, or wrecks. This unit can be electronically or manually controlled which means you choose how you want the loop PPo2 maintained.

Includes shoulder mounted counter lungs and rear mounted radial scrubber which provide easy breathing with low resistive effort and low hydrostatic loading. The Prism 2 has also been tested by ANSTI at 100M and has the lowest WOB of any mixed gas CCR on the market at 0.94 J/L.

The standard kit includes an electronic secondary control and primary LED displays with a backplate/wing assembly that provides a complete kit ready to dive out of the box. Unit can also be purchased with or without tanks/valves.



  • Shoulder mounted counterlungs provide easy breathing with low hydrostatic loading
  • Lowest Work of Breathing in industry at 0.94 J/L - Tested at 100M by ANSTI
  • Unit weight when fully charged, in standard
    configuration - approx. 47lbs
  • 3.5 Liter split counterlungs allows inhale and exhale counterlungs for high work loads
  • Counterlung drains make it easy to remove water during a dive
  • All gas lines external to the breathing loop prevents leaks from affecting the PPO2
  • Automatic diluent addition valve adds diluent during descent or when the loop volume is low
  • Manual diluent addition valve adds on board or off board diluent for loop flushing
  • Gases - Air, Trimix, and Heliox
  • Manual oxygen addition valve allows for manually controlling oxygen PPO2
  • High performance open circuit Bail Out Valve option
  • Integral harness and BC or
    Backplate standard makes the Prism 2 ready to dive out of the box
  • Full range of wings/harness gives the ultimate customization
  • Accepts 13, 19, or 30 cu.ft. cylinders for flexible gas management
  • Eye level LED Primary display provides easy to monitor system status
  • Displays PPO2 for each oxygen sensor is used to control PPO2 manually & assure electronics system is nominal
  • External power switch is easy to power on
  • Easy calibration with a push button O2 calibration 
  • Large OLED Secondary Display is easy to read, even for your buddy
  • PPO2 Monitoring of Three Sensors Continuous display of each sensor’s PPO2, mv reading easy to access
  • Closed Circuit & Open Circuit, 5 gases supports diluent switching & Multi-gas mix dive plans
  • 2 button push OC bailout - If you have to leave the loop, quickly switches to bailout support
  • CNS Tracking based on real time
    oxygen exposure
  • Software Update via web
  • Dive Log download and software updates via Bluetooth
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