Anemometer: 1.Air Velocity & Temperature Measurement; 2.Max/Average/Current air velocity measurement; 3./ Temperature unit selection; 4.Five units of air velocity:M/s, Km/h, ft/min, Knots, mph 5.Beaufort scale; 6.Backlight display; 7.Manual/Auto power shut off; 8.Wind chill indication; 9.Low battery indication. wind speed Measuring items :Air velocity (Wind speed), Air temperature Range of Air velocity :0~30m/s, 0~90km/h, 0~5860ft/min, 0~55knots, 0~65mph Accuracy of Air velocity :5% Range of Air temperature :-10-45Celsius Accuracy of Air temperature :2Celsius Resolution of Air velocity :0.1m/s, 0.2Celsius Battery :CR2032 (not included) Thermometer :NTC thermometer Operating humidity :Less than 90%RH Store temperature :-40 ~+60 Current consumption :. 3mA Colour:orange Material:plastic Package contents: 1 x Handheld Anemometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.