About this item 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 -10~4514-113(+/-235.6); 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 fly drones rc planes wings helicopters and quads long distance shooting. Portable Digital AnemometerIt's a light weight pocket size Wind Gauge Meter portable for you and your family to measure outside for outdoor activities such as: shootingBoat Sailing Kite flying Climbing Drone driving etc. NOTE: Anemometer Case Included 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.