8 in 1 Function: Digital altimeter, with digital barometer, digital compass, weather forecast, time, calendar, thermometer, & backlight. The device is based on the technology of electronic bearing sensor & barometric sensor The digital altimeter is designed for outdoor use, the detachable string makes the digital compass a perfect h&-carry device for various outdoor activates it will give you backlight when you press any button in any time. For outdoor sports enthusiasts with a wide range of essential & more precise information. Altimeter: -700 to 9000m / -2300 to 29500ft Weather forecast History Altitude Record: 256pcs records Compass: show bearing in degrees & cardinal point Thermometer: in degree celsius / degree fahrenheit format Clock: in 12 hours or 24 hours format Powered by 2 x AAA barreries (Battery Not included) Calendar Backlight Net Weight: 48 g / 1.69 oz
Size: 90 x 50 x 18 mm / 3.54 x 1.97 x 0.71 inch