Functions accessible from: 'Main menu > Settings > System > Altimeter'
Before getting out with your GPS it is very important to properly calibrate the device so that it offers accurate data. The default setting usually offers the best results for most users. The barometric altimeter is self-calibrating:
•Take altitude from: Your device offers you different ways to determine the altitude value you are taking during your navigations:
•GPS: Altitude data from the GPS will be used.
•3D relief (altitude map): Current altitude of the 3D relief map (3D relief map must be loaded).