BTMETER Wind Speed Gauge Meter BT-100 Anemometer Portable Digital 14℉-113℉ Temperature Air Velocity Wind Chill Temperature Measurement Backlight Accurately Measuring Keep track of changing wind conditions Thanks to the sensitive dual temp sensors, 8 vanes, the BTMETER BT-100 can take accurate wind speed/ temperature readings in HVAC, industrial, hobbyist. Forget speculating, know exactly the changing of wind conditions while you flying, skiing, sailing, shooting, wind surfing and other outdoor activities. Specifications: Wind Velocity Range: 0.67~67.1 mph Speed units:m/s, km/h, ft/min, knots, mph Wind Temp Range: 14℉-113℉ Temp Units Optional: ℃/℉ ANEMOMETER FLIGHT Outdoor Hobbies Keep track of wind conditions for outdoor plans. BT-100 can help you ensure every hunt, drone flight,kite flying,boating safer and joyful. SHOOTING ANEMOMETER Long Range Shooting BT-100 reads max/min/average/current for wind speed. Know the wind speed,wind gust before pull the trigger. It's an ideal entry-level anemometer for long-range shooting. CFM METER HVAC System Accurately check the air flow for AC, vents, dust collector,etc. Air Flow in CFM (Q) = Flow Velocity in Feet Per Minute (V) x Duct Cross Sectional Area (A) HANDHELD ANEMOMETER Natural Winds Perfect for use in windy days, chasing tornadoes and in your backyard. It’s time to stay ahead of Mother Nature. ➤【Multifunction Pro Anemometer】Wind Speed, Wind Temperature, Wind Chill, Low battery indicator on bright backlit LCD screen. BT-100 is a portable digital anemometer can accurately measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph. Temperature measure in ℃/℉(Degree Celsius/Fahrenheit) ➤【High Precision Wind Meter】Wind Speed Meter for measuring wind speed range 0.3~30m/s(+/- 5% of readings), Wind temperature range -10℃~45℃(+/- 2℃), Resolution 0.1m/s; 0.2℃. With 2 sensitive sensors and 8-leaves sensitive fan, this BT100 Pro Anemometer can accurately detect wind speed temperature, to help you with HVAC installation, CFM calculation, Duct ventilation. ➤【Threaded Hole for Mounting】There’s a threaded hole on the bottom of the anemometer, so you can fix it on a tripod, to constantly monitor the update measurement when you fly drones, rc planes, wings, helicopters and quads, shooting. ➤【Portable Digital Anemometer】Light weight, small size easy to use makes this Wind Gauge Meter is easy for you and your family to take outside for outdoor activities, such as: Shooting,Boat Sailing, Kite flying, Climbing, Cycling, Drone driving etc. ➤【Save Your Battery】Manual / Auto Power OFF to save your battery, Back Light Function. 2x1.5V AAA batteries are included to get you start measuring once you receive the wind tester