Multifunction Pro AnemometerWind Speed, Wind Temperature, Wind Chill, Low battery indicator on bright backlit LCD screen. BT-100 is a portable wind speed guages can accurately measure air speed in 5 units: m/s, km/h, ft/min, knots, mph. Wind Temp in /(Degree Celsius/Fahrenheit) Accurate Wind MeterWind Speed Meter for measuring wind speed range 0.67~67.1 mph(+/- 5% of readings), Wind temperature -10~45,14-113(+/-2,35.6); Resolution 0.1m/s; 0.2. 2 temp sensors and 8 vanes makes the meter is very sensitive to measure very low air flows to help you with HVAC installation, CFM calculation, Duct vents. Tripod Hole for MountingTheres a metal threaded hole on the bottom of the digital anemometer, so you can fix it on a tripod for continuous wind guages. To set your hands free when you flydrones, rc planes, wings, helicopters and quads, long distance shooting. Anemometer Case IncludedIt's a light weight, pocket size airspeed Meter, portable for you and your family to measure outside for outdoor activities, such as: shooting,Boat Sailing, Kite flying, Climbing, Drone driving etc. Easy to Use Manual / Auto Power OFF optional, Back Light Screen to let you see clear even in dark. 2x1.5V AAA batteries included to get you started when you receive the wind tester. Add to Cart, Buy it, Use it, for any quality problems, well replace you.