1、This equipment is a simple instrument measuring equipment made for outdoor 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 outdoors. 4、The multi function meter can provide ultra 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 outdoors. 6、The kit is equipped with a rope to make this device more portable in various outdoor sports. Item Type: Multifunction Digital Altimeter Altimeter: Approx. -700~9000m / -2300~29500ft measurement range (the altimeter can be used for initial calibration) Resolution: Approx. 1m / 3.3ft Barometer: 300mbar-1100mbar measuring range Resolution: 0.1mbar Electronic Compass: 16 directional mode display External magnetic field correction Accuracy: ±3° Resolution: 1° Thermometer: Measuring range: -10℃-+60℃ (℃ and ℉ unit adjustable) Resolution: 0.1℃ Weather Forecast and Time: Forecast 12 to 24 hours weather conditions 4 types of weather forecasts: Sunny-partly sunny-cloudy-rainy 12/24 hour time format Electronic Backlight: 5 seconds high brightness blue LED electronic backlight Battery: 2 x AAA (not included) Accessories: Lanyard, English user manual 1 x Multifunction Digital Altimeter 1 x Lanyard 1 x English User Manual