Polar Barometer
Monitor weather changes with barometric pressure and temperature reading.
Use the Barometer to measure sea level or absolute barometric pressure. Sea level pressure represents the unit’s estimate of absolute pressure corrected to sea level (as reported from a weather station or airport). Absolute barometric pressure is true atmospheric pressure at current altitude and conditions.
Since the Altimeter and Barometer both use barometric pressure, only one of these features may be activated at a time. Therefore, you will have to activate the Barometer separately for use. When the Barometer is activated, all changes in barometric pressure are interpreted as changes in weather conditions.
If you remain at the same altitude, changes in barometric pressure tip you on changing weather conditions. For example, when you camp overnight, activate the Barometer for the night and check it in the morning for changes to make sure you are up-to-date on changing weather conditions.
