Single-Gas and Multi-Gas Data Screens

Gas dive data screen loop with callouts
Primary data screen

Displays the main dive data, including your breathing gas and rate of ascent or decent.

Callout number one

Your partial pressure of oxygen (PO2) level.

Callout number two

Your nitrogen (N2) and helium (He) tissue load level.

Green Green: 0 to 79% tissue load.

Yellow Yellow: 80 to 99% tissue load.

Red Red: 100% or greater tissue load.

Callout number three

Your rate of descent or ascent.

Green Green: Good. Ascent is less than 7.9 m (26 ft.) per min.

Yellow Yellow: Moderately high. Ascent is between 7.9 and 10.1 m (26 and 33 ft.) per min.

Red Red: Too high. Ascent is greater than 10.1 m (33 ft.) per min.

Dive compass

Allows you to view the compass and set a directional heading to aid with underwater navigation (Navigating with the Dive Compass).

Customizable data screen

Displays additional dive data and physiological information, including the time of day, battery level, and your heart rate. You can edit the gauges and the first five data fields (Customizing the Data Screens).

Callout number four

The time to surface (TTS) decompression calculation.

Transmitters data screen

Displays information about paired Descent™ T1 transmitters (Viewing the Transmitter Data Screens).

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