When the Alti use is selected, the altitude reading of Compass, Hiking and Hiking Chrono modes changes, but the atmospheric pressure (sea level) in the second row of the Weather mode remains constant. The absolute pressure changes if it is selected as a shortcut on the third row of the Weather mode.
If you select Baro (barometer), the measured air pressure is displayed as weather information and all changes in atmospheric pressure are interpreted as being due to a change in the weather.
When the Baro is selected, the altitude reading in the Compass, Hiking and Hiking Chrono modes remains constant. The atmospheric pressure (sea level and absolute) in the Weather mode changes.
Select the correct use according to what you want to measure. For example, on a hiking trip, you can select Alti for the day to see how high you have climbed. When you camp for the night, you can change the use to Baro to make sure that the weather changes do not catch you by surprise.
To select either Altimeter or Barometer use:
1.In the Function menu, scroll to Use with the arrow buttons and press Suunto. The Alti/Baro field is activated.
2.Change the content of the field with the arrow buttons and press Suunto. You then return to the Function menu.
3.3.3. Altitude/Sealevel
In order for the altimeter to function correctly you need to set the reference altitude. This means that you set an altitude reading that is equal to the real altitude. Set the reference altitude in a place where you know the altitude, for example, with the help of a topographical map. The Suunto X6/X6M has a factory set reference altitude that
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