Suunto X9_en. Instruction Manual page 34

backlight is turned on and the message '
sea-level barometric pressure. You can acknowledge the alarm by pressing any of the
Suunto X9 buttons.
Altitude alarm
32
WEATHER ALARM
With the Altitude function you can set an alarm that informs
you when you reach the set altitude.
To activate or deactivate the altitude alarm:
1.In the Set menu, scroll to Alarm with UP/DOWN and press
ENTER. The Alarm menu opens.
2.Altitude is the first menu item. Press ENTER to activate it.
The Altitude alarm display opens and the On/Off field is
activated.
3.Change the field to either On or Off with UP/DOWN and
press ENTER. The altitude field is activated.
4.Change the altitude with UP/DOWN and press ENTER. The
altitude alarm is now set and you return to the alarm menu.
When the alarm is activated, you hear the alarm signal, the
backlight is turned on and the message '
displayed with the current altitude. You can acknowledge the
alarm by pressing any of the Suunto X9 buttons. The alarm is
activated again when the device goes 50 m above or below
the set altitude.
' is displayed with the current
ALTITUDE ALARM
' is