Digital 8 in 1 LCD Compass Barometer Altimeter Thermo Temperature Clock Calendar

100% brand new and high quality The device is based on the technology of electronic bearing sensor and barometric sensor. The digital altimeter is designed for outdoor use, the detachable string makes the digital compass a perfect hand-carry device for various outdoor activates it will give you backlight when you press any button in any time 8 in 1 Function: Digital altimeter, with digital barometer, digital compass, weather forecast, time, calendar, thermometer, and backlight The device is based on the technology of electronic bearing sensor and barometric sensor The digital altimeter is designed for outdoor use, the detachable string makes the digital compass a perfect hand-carry device for various outdoor activates It will give you backlight when you press any button in any time Forecast the weather for the forthcoming 12 to 24 hours basing on barometric pressure changes Altimeter: -700 ~ 9000m / -2300 ~ 29500ft Weather forecast Resolution: 0.