User manual

You can reset the apnea timer by keeping [SELECT] pressed.
The apnea timer supports up to 20 intervals, but this is dependent
on the ventilation and increment times. The last ventilation cycle
cannot be shorter than 0:05 seconds or longer than 20:00 minutes.
WARNING: Anyone who engages in any form of breath hold
diving is in danger of shallow-water blackout (SWB), the sudden
loss of consciousness caused by oxygen starvation.
3.4 Backlight
To active the backlight while diving, press [MODE].
Otherwise, keep [MODE] pressed until the backlight activates to use
the backlight.
You can define how long the backlight stays on when you activate
it or turn the backlight off altogether.
To set backlight duration:
1. While in time mode, keep [DOWN] pressed.
2.
Press [DOWN] to scroll to BACKLIGHT and press [SELECT].
3. Set duration or turn off with [DOWN] or [UP].
4. Press [MODE] to save and exit to settings.
NOTE:
When the backlight is off, it does not illuminate when an
alarm sounds.
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