Barometer & Altimeter: The air pressure value on the screen is the air pressure at the current location. The height value on the screen is the sea level of the current location. Press [ /+ ] button to the use of altimeter and barometer.
Relative Altitude: Monitor the ascending or descending altitude from one certain location or the relative altitude for any mountain or object etc.
Weather Forecast: Apart from detecting the altitude, barometer also helps to forecast the weather for the forthcoming 12 to 24 hours basing on barometric pressure changes. The effective range is 30- 50kms.
History Altitude Record: Press [HISTORY] button, you can view records of history altitude and air pressure. It will display the most previous record in this mode, then you can press [ /+ ] or [- ] button to forwards or backwards view history records. It can save most 256pcs records, the records†distance are five minutes, and you can change the distance from 1- 60 minutes if you press and hold [HISTORY] button for 2 seconds.
Save power design: When you donâ€t want to use the device, you press and hold [SET] button for 5 seconds, the device will stop all display enter into dormancy mode. And then you press any button, it will resume previous display. Backlight: In any mode, it can give you backlight for 5 seconds that you press any button.