Switching Gases During a Dive

  1. Start a gas dive activity.
  2. Select an option:
    • Press ENTER, select Switch Gas, and select a backup or decompression gas.

      NOTE: If necessary, you can select Add New and enter a new gas.
    • Dive until you reach the MOD/Deco PO2 threshold (Setting PO2 Thresholds).

      The dive computer prompts you to switch to the gas that has the highest percentage of oxygen and is below the threshold.

      NOTE: The dive computer does not switch gases for you automatically. You must select the gas.
GUID-D6BA1847-E20D-4241-B08C-DF0D8B052B28 v5
April 2026