Feature:1. This equipment is an ideal simple equipment for outdoor sports enthusiasts.2. For outdoor sports enthusiasts provide broad, necessary and more precise information.3. Electronic altimeter (compass + altimeter + barometer + weather forecast + history altimeter and barometer records + thermometer + clock + calendar).4. Super bright backlight, no matter in any environment, you can clearly see the reading on the LCD screen.5. Scope of application: hiking, camping, mountaineering, and other outdoor places.Specification:Digital altimeter, with digital barometer, digital compass, weather forecast, clock, calendar, thermometer. The device is based on the technology of electronic bearing sensor and air pressure sensor.The digital altimeter is designed for outdoor use, the detachable string makes the digital compass to a perfect hand-carry device for various outdoor activities.Features:This equipment is an ideal simple equipment for outdoor sports enthusiasts.For outdoor sports enthusiasts provide broad, necessary and more precise information.Electronic altimeter (compass + altimeter + barometer + weather forecast + history altimeter and barometer records + thermometer + clock + calendar).Super bright backlight, no matter in any environment, you can clearly see the reading on the LCD screen.Scope of application: hiking, camping, mountaineering, and other outdoor places.The compass provides long life in many weather conditions. Effective against bumps and scratches.Specifications:Model: ZD-2028Material: ABSDigital Electronic CompassAccuracy: ±3°Resolution: ±1°Digital Altimeter Range: -700 ~ 9000m (-2300 ~ 29500ft)Digital Barometer Range: 300mbar-1100mbarWeather ForecastHistory Altimeter and Barometer RecordsDigital Thermometer or user optionDigital Clock (2 time zones with 12/24 hours, with hour, minute, second)Calendar (with year, month, date)Backlight LCD Leveling bubble for increased accuracyItem Size: 118 * 75 * 28mm / 4.64 * 2.95 * 1.10inItem Weight: 100g / 3.52ozPackage Weight: 123g / 4.34ozPackage Size: 17 * 9 * 4cm / 6.69 * 3.54 * 1.57inPackage List:1 * Digital Altimeter1 * Lanyard1 * User Manual (English)Package List:Package List:1 * Digital Altimeter1 * Lanyard1 * User Manual (English)