By: Torben Lonne
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The Hollis Prism 2 is a pretty sleek-looking unit, and it has got some serious technical chops to boot. Plus there are a few options for divers, such as choosing between electronic or manual control options and back-mount or front-mount counter lungs. Explore open seas, caves, or wrecks with ease.
Tested by ANSTI at 100 meters, the Prism 2 had the lowest work of breathing of any mixed gas CCR unit. Tanks and valves will need to be purchased separately.
Learn more about the Hollis Prism 2 here.
Our Overall Review
Reasons to buy:
-
Highly customizable, plenty of different options for add-ons, configurations, and dive styles -
Rear-mounted radial scrubber
-
Excellent work of breathing
-
CE approved
-
Hollis has an excellent reputation for after-sales support
Reasons NOT to buy:
One of the finickiest scrubbers to pack in the industry- BOV is sensitive to freeflow on the surface
One of the finickiest scrubbers to pack in the industryWhere to buy:
Specs & Features
- Unit weight of 47 pounds in standard configuration
- Split counter lungs
- Both front and back-mount counter lung configurations
- Counter lung drains to easily remove water during a dive
- All gas lines external to the breathing loop
- Automatic diluent valve
- Manual diluent valve
- Air, Trimix, and Heliox suitable
- Manual oxygen valve for manual PPO2 adjustments
- Harness and BC or backplate
- Compatible with 2 and 3-liter cylinders
- LED display for an easy to monitor system status
- PPO2 displays for each sensor
- External power switch
- Push-button O2 calibration
- Large secondary display
- Supports diluent switching and multi-gas dive plans
- Two-button OC bailout
- CNS tracking for real-time oxygen exposure
- User updatable software
- Stand included with purchase
Related Reviews
Our Overall Review
Reasons to buy:
-
Highly customizable, plenty of different options for add-ons, configurations, and dive styles
-
Rear-mounted radial scrubber
-
Excellent work of breathing
-
CE approved
-
Hollis has an excellent reputation for after-sales support
Reasons NOT to buy:
- One of the finickiest scrubbers to pack in the industry
- BOV is sensitive to freeflow on the surface
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