SUUNTO AMBIT2 S User Guide - Manual (Page 57)

The declination value appears on most maps. The location of
magnetic north changes yearly, so the most accurate and up-to-date
declination value can be obtained from the internet (for example
www.magnetic-declination.com).
Orienteering maps, however, are drawn in relation to magnetic
north. This means that when you are using orienteering maps you
need to turn the declination correction off by setting the
declination value to 0 degrees.
To set the declination value:
1. Keep [Next] pressed to enter the options menu.
2. Press [Next] to enter GENERAL.
3. Scroll to Compass using [Light Lock] and select with [Next].
4. Scroll to Declination with [Light Lock] and select with [Next].
5. Turn the declination off by selecting --, or select W (west) or E
(east).
6. Set the declination value with [Start Stop] or [Light Lock].
7. Press [Next] to accept the setting.
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