Polar Electro AXN500 User Manual page 24

Barometric Pressure Drop Alarm
A pressure change over an interval of about 2-3 hours is the best indicator for a weather prediction. If the barometric
pressure drops 4 hPa/0.12 inHg or more in 3 hours, the Pressure Drop Alarm symbol appears automatically and you receive
the Barometer ALARM notice text. The text remains in the display until you press a button.
Changing the upper row information:
As in the Alti main mode, you can change the display to show the information that you need.
To change the information in the upper row, press and hold the Up
1. Barometer trend
24 THE MAIN FUNCTIONS OF THE POLAR OUTDOOR COMPUTER
2. Absolute pressure reading (hPa/inHg)
Press and
hold
button:
Absolute pressure reading is your
current location's barometric
pressure.
1011 hPa equals 29.85 inHg.