Hollis Prism 2 Rebreather

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Hollis Prism 2 Rebreather
Hollis Prism 2 Rebreather

In stock


Excl. Sales Tax


    The Hollis PRISM 2, is a digitally controlled, electronic closed circuit rebreather with split Front-Mounted Counterlungs (FMCL) or Back-Mounted Counterlungs (BMCL). It incorporates a radial design scrubber for the best possible duration and work-of-breathing. All gas delivery systems on the PRISM 2 have both automatic and manual function. CE approved as of October 2019.


    • Choice of Front Mounted or Back Mounted Counterlungs.
    • 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
    • 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
    • Integral harness and BC or Backplate standard makes the Prism 2 ready to dive out of the box
    • High performance open circuit Bail Out Valve option
    • 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
    • Stainless Steel Stand Included


    Length 21 in (53.3 cm)
    Width 17 in (43.2 cm)
    Depth 9 in (22.9 cm)
    Buoyancy Neutral
    Weight Approx. 47 lb with tanks
    Scrubber Flow Design Radial
    Counterlungs Front Mount 3.5L / Back Mount 4.0L
    PO2 Set Points Adjustable (0.7, 1.0, 1.2, 1.3, 1.4)
    O2 Sensors 3 Galvanic
    Sensor Life 12 months in air or 100 hours dive time
    Heads Up Display Yes, 9V battery powered sequential LED
    Handset Yes, (Shearwater Petrel) Powered by Lithium Cell
    Battery Type 9V Alkaline / 3.6v Lithium Cell
    Battery Life 40 Hours
    Automatic Setpoint Switch Yes
    Integrated Weight System Yes (Optional)
    Scrubber Duration 245 min @ (60 fsw, 40F, 1.3L/min CO 2,0.5%CO 2 SEV)
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