Single-Gas, Multi-Gas, and CCR Data Screens
The primary data screen for single-gas, multi-gas, and CCR dive modes displays the main dive data, including your breathing gas, rate of ascent or descent, maximum depth, and time to surface (TTS). You can press DOWN to scroll through additional data and to view the dive compass ().

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Your rate of ascent. |
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Indicates whether closed-circuit (CC) or open-circuit (OC) diving is active in a CCR dive. |
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Your partial pressure of oxygen (PO2) level. |

Green: Good. Ascent is less than 7.9 m (26 ft.) per minute.
Yellow: Moderately high. Ascent is between 7.9 and 10.1 m (26 and 33 ft.) per minute.
Red: Too high. Ascent is greater than 10.1 m (33 ft.) per minute.
