Item Name: LCD Backlight Display Wind Speed Meter Digital Anemometer 0-30m/s -10 ~ 45C. Range of Air temperature -10-45C Current consumption Approx. 3mA Accuracy of Air temperature 2C Weight 52gOperating temperature -10-45C Store temperature -40 ~+60 Measuring items Air velocity (Wind speed), Air temperature Resolution of Air velocity 0.1m/s, 0.2C Operating humidity Less than 90%RH Thermometer NTC thermometer Battery CR2032 (not included) Range of Air velocity 0~30m/s, 0~90km/h, 0~5860ft/min, 0~55knots, 0~65mph Accuracy of Air velocity 5% 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, mph5.Beaufort scale 6.Backlight display 7.Manual/Auto power shut off 8.Wind chill indication 9.Low battery indication.Package:1 Digital Anemometer *Please make