Suunto D4 manual Setting the depth notify alarm Free mode, Setting the dive-time alarm

The depth alarm is factory-set to 30 m/131 ft, but you can adjust it according to your personal preference, or switch it off altogether. The depth range can be set from 3m to 100 m/9 ft to 328 ft.

5.8.2. Setting the depth notify alarm (FREE mode)

You can set the depth notify alarm to indicate a certain depth, for example, start of free falling or mouth filling in free diving.

5.8.3. Setting the dive-time alarm

The Suunto D4 has a dive-time alarm setting which, when activated, can be used for several purposes to add to your diving safety.

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ADJUST WITH UP AND DOWN BUTTONS. ACCEPT WITH SELECT BUTTON.

NOTE	With a range of 1 - 999 minutes, the alarm can be set to your
	planned bottom time, for example.

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