Multifunction LCD Digital Altimeter Barometer Thermometer Hygrometer Weather Forecast LED Torch Specification: Specifications: Altimeter: Altimeter range-700 to 9000m/-2296 to 29500ft Resolution of 1 meter/feet Maximum/Min. memory for altitude Altitude history and graphical display of the last 24 hour altitude readings Altitude total gain or loss 44999 meter/feet Barometer: Pressure range 300hpa to 1100hpa8.84inHg to 32.44inHg Resolution of 0.1hpa0.01inHg 24 hour pressure history and graphical display Electronic pressure weather forecastsunny, slightly cloudy, cloudy, rainy Pressure trend indicators Thermometer: Range from -20 degrees Celsius to 60 degrees Celsius -4℉ to 140℉ degrees Celsius and ℉ selectable Maximum/Min. memory for temperature Hygrometer: Relative humidity20% - 95% Maximum/Min. memory for relative humidity Specifications: Material: Plastic Color: Black + yellow Built in battery: 300mAh Item size: 10 x 6.5 x 2cm / 3.9 x 2.6 x 0.8in Item weight: 70g / 2.5oz Package size: 16 x 11 x 3.5cm / 6.3 x 4.3 x 1.4in Package weight: 128g / 4.5oz Package List:1 x Altimeter 1 x Charging Cable 1 x Lanyard 1 x User Manual Englishor 1 x Altimeter 1 x Charging Cable 1 x Wrist Strap 1 x User Manual Note:Please do NOT in water. Adopt super accuracy sensor, sensitive to use Incorporates GPS, altimeter, barometer, functions, etc Thermometer, hygrometer, time, date, alarm clock. Altitude total gain/loss, 24 hours altitude record and chart Maximum/min altitude, temperature, humidity record. 24 hours pressure trend chart Built in rechargable battery. LCD backlit and LED torch. IPX 4 water. Do NOT in water