The Buddy Nexus Dive Computer from AP Valves allows you to choose between open and closed circuit diving modes. Unlike many computers the Nexus allows you to change modes between dives without waiting for the computer to desaturate. In open circuit (SCUBA) air mode, nitrox (21-50%), 2 mix nitrox diving (1st mix 21-50%, 2nd mix 1st mix-100%). In closed circuit designed for use with Buddy Inspiration rebreather.

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