1、This equipment is a simple insument measuring equipment made for ouoor sports enthusiasts. 2、The device is fully functional and can provide information such as altitude, position, air pressure, time, and temperature. 3、The device has a wide measurement range and high accuracy, and can provide you with accurate information ouoors. 4、The multi-function meter can provide ula-bright backlight, no matter what the environment, you can clearly see the readings on the LCD display. 5、The device is powered by 2 AAA batteries not included and has a power‑saving function, so you don't have to worry about charging it ouoors. 6、The kit is equipped with a rope to make this device more por in various ouoor sports.Item Type: Multifunction Digital AltimeterAltimeter:Approx. -700~9000m / -2300~29500ft measurement range the altimeter can be used for initial calibrationResolution: Approx. 1m / 3.3ftBarometer:300mbar-1100mbar measuring rangeResolution: 0.1mbarEleconic Compass:8-directional mode displayExternal magnetic field correctionAccuracy: ±3°Resolution: 1°Thermometer:Measuring range: -10℃-+60℃ ℃ and ℉ unit adjusResolution: 0.1℃Weather Forecast and Time:Forecast 12 to 24 hours weather conditions4 types of weather forecasts: Sunny-partly sunny-cloudy-rainy24-hour time formatEleconic Backlight:5 seconds high-brightness blue LED eleconic backlightBattery: 2 x AAA not includedAccessories: Lanyard, English user manual 1 x Multifunction Digital Altimeter1 x Lanyard1 x English User Manual