Single-Gas, Multi-Gas, and CCR 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 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 two

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.

Callout number three

Your partial pressure of oxygen (PO2) level.

Callout number four

During a CCR dive, indicates whether closed-circuit (CC) or open-circuit (OC) diving is active.

Dive compass

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

Secondary data screen

Displays additional dive data and physiological information, including the time of day and battery level.

Callout number five

Your current heart rate zone (About Heart Rate Zones).

NOTE: You can view only wrist heart rate monitor data during a dive.

Gray Gray: Zone 1.

Blue Blue: Zone 2.

Green Green: Zone 3.

Orange Orange: Zone 4.

Red Red: Zone 5.

Callout number six

Your central nervous system (CNS) oxygen toxicity level.

Green Green: 0 to 79% CNS oxygen toxicity.

Yellow Yellow: 80 to 99% CNS oxygen toxicity.

Red Red: 100% or greater CNS oxygen toxicity.

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