Polar Altimeter
Shows your current altitude reading with graphical trend curve and your vertical progress.
Altitude is measured by using an air pressure sensor. Air pressure changes constantly due to varying weather conditions. Therefore, measured altitudes in the same position may vary. Pressure variations due to weather conditions, or indoor air-conditioning, may affect altitude readings. Calibrate your Altimeter at regular intervals to make sure it remains accurate.
Since the Altimeter and Barometer both use barometric pressure, only one of these features can be activated at a time. Therefore, you will have to activate the Altimeter separately for use. When the Altimeter is activated, all changes in barometric pressure are interpreted as changes in altitude.
The Altimeter allows you to identify your current altitude and to determine altitude-related conditions. It will also aid in pinpointing your position on a map and help you select an appropriate route. Using the Altimeter, you will learn how much you can ascend or descend per day, and how fast you can ascend or descend in current weather conditions.
