Suunto D9 - Configuring Alarms, Tones, and Units

ADJUST WITH UP AND
DOWN BUT
TONS. ACCEPT
WITH SELECT BUTTON.
4.1.6. Setting the backlight
Use the BACKLIGHT SETTING mode to turn the backlight on or off and to define how
long it stays on for (5, 10, 20, 30, or 60 seconds). When the backlight is turned off, it
does not illuminate when an alarm sounds.
ADJUST WITH UP AND
DOWN BUT
TONS. ACCEPT
WITH SELECT BUTTON.
4.1.7. Setting the tones
The TONE SETTING mode allows you to activate or deactivate the tones.
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