1.Altimeter: Measurement range -700 to 9000m / -2300 to 29500ft (Altitude meter can be used for initial calibration). Resolution 1 meter or 3 feet
2.Barometer: Measurement range 300mbar to 1100mbar. Resolution 0.1 mbar
3.Electronic compass: 8-azimuth mode display. External magnetic field correction. Accuracy ±3 degrees. Resolution: 1 degree
4.Thermometer: Measuring range -10°C to 60°C (°C and °F units are optional). Resolution: 0.1 degree
5.Weather forecast and time: Forecast weather conditions after 12 to 24 hours. Weather conditions indicate: sunny - partly sunny - cloudy - rainy. 24-hour time format
6.Electronic backlight: 5 Seconds high brightness blue LED electronic backlight
7.Electricity: Use AAA-7 battery X2 (Not Included)

Package Include:
1 x 8 in 1 Digital Altimeter
1 x Battery
1 x English Instructions

Note:
1.To avoid the use of rain, moisture, temperature is too high or too low, (working temperature: 0 °C -50 °C; storage temperature -20 °C -70 °C
2.Avoid contact with perfume, alcohol, cleaning agents and other corrosive substances
3.Avoid near buildings such as concrete/steel or placed on the surface of the metal plate