Digital Wind Speed Anemometer Handheld, Kethvoz Windspeed Gauge with Wind Chill Sensor to Measure Air Flow Velocity Temp w/MAX/MIN/AVG, for Drone Fly Climbing Windsurfing Sailing HVAC KE-866BHigh Precision Wind GaugeBuilt with 8 sensitive vanes, this handheld wind speed meter KE 866B can test windspeed range 0. 3~30m s with Maximum Minimum Average mode in high accuracy 5% of reading. 5 optional Air Speed Units: m s, Km h, Ft min, Knots, Mph. Wind Chill IndicatorDigital Wind Tester can measure Air Temperature 10~45 14~113(Centigrade & Fahrenheit switchable). Built in sensitive dual wind chill sensors, wind chill symbol will appear on the