Handheld Digital LCD Display 8 In 1 Altimeter Barometer Forecast Clock For Outdoor Climbing Hiking| Handheld Digital LCD Display 8 in 1 Altimeter Barometer Forecast Clock for Outdoor Climbing Hiking Description: 1. The equipment is an ideal and simple equipment for outdoor sports enthusiasts. 2. It provides extensive and accurate information for outdoor sports enthusiasts, such as electronic altimeter (weather forecast + altitude meter + compass + barometer + clock) with backlight. 3. Functions: altimeter, barometer, level meter, weather forecast, compass, thermometer, calendar, time, backlight. 4. Scope of application: hiking, camping, mountaineering, and outdoor places. : Material: ABS : 2 x AAA (not included) Altimeter: Measurement range: -700 m ~ 9000 m (-2300~2950ft) (altimeter can be corrected for initial test) Resolution: 1 meters or 3 feet Barometer: Measurement range: 300mbar to 0mbar Resolution: 0.1mbar. Electronic : 8- azimuth mode display External magnetic field correction : 3 Degree Resolution: 1 degrees : Measurement range: -10~+60( and optional) Resolution: 0.1 degrees forecast and time: forecast after 12 to 24 hours 4 weather conditions indicate: clear - half clear - cloudy day - rainy day 24 hour format Electronic backlight: 5 second high brightness LED electronic backlight Warm Tips: 1. Avoid using in the rain and damp, high or low temperature condition (temperature: 0-50; storage temperature:-20-70). 2. Avoid contact with corrosive substances, such as perfume, alcohol, cleaning t, and so on. 3. Avoid being used in a region that may affect the normal direction of the magnetic compass: a: Near concrete / steel and buildings. b: It's very close to the power station. c: Close to the home appliances (such as computers, TV, VCD, fax machines, loudspeakers, etc.) d: The bridge is very close to a large number of steel or metal. e: It's very close to moving vehicles (cars, trains, planes). f: Near or placed on the surface of a metal plate Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.