SUUNTO Elementum Terra - Manual (Page 12)

When the alarm goes off, press any button to turn it off. The alarm goes off the
same time the following day.
1.3 Using button lock
The button lock can be activated in TIME and ALTITUDE RECORDING mode.
To activate the button lock:
1. Press [A] and [B] at the same time. When the button lock is activated, only
the backlight works.
2. To open the button lock, press [A] and [B] at the same time.
1.4 Activating backlight
The backlight can be activated in both modes and COMPASS view. Keep [B]
pressed to activate the backlight. The backlight stays activated for 5 s.
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