I. product parameters: Product size: 931554mm Package size: 138 67 32cm Weight: machine weight: less than 200 grams. Material: ABS, color: black + yellow II. Product Features: Altimeter: - 700m ~ 9000m (- 2296 ~ 29500ft) measurement range 1 meter or 3 meter resolution feet Barometer: measurement range from 350mbar to 1100mbar resolution 0.1 mbar. Electronic compass:< /p> 8 - Azimuth mode display external magnetic field correction accuracy 3 degrees resolution 1 degree< /p> Thermometer: measuring range - 5 ~ +50 ( and units are optional) 0.1 degree resolution, accuracy 2 degrees Weather and hourly forecast: weather forecast after 12-24 hours 4 weather conditions foreshadowing: sunny semi - sunny cloudy rainy 24 hour format