đ©ăMULTIFUNCTION WIND METERăâ: The anemometer with bluetooth function is designed to measure wind speed (0-30 m/s, 0-5860 ft/min, 0-55 knots, 0-90 km/hr, 0-65 mph) with 12 level beaufort scales, and detect air temperature ( 14°F and 113°F), easy to switch â/â units by press the button with no tools, support wind chill indication, display Max/ Average/ Current air velocity on LCD screen in real time, more convenient than 2 buttons anemometer. đăEASY TO INSTALL BATTERY & USEăâRemove off the yellow rubber protector cover, then open the battery door, it's more easier than other wind meter gauge. Put a 9V battery (included), turn on windspeed anemometer by press âModeâ for 2s to measure wind and analyze environment to do activities. đȘăBACKLIGHT& AUTO/MANUAL SHUTDOWNăâPress any keys to active the wind anemometerâs backlight last for 12 seconds, convenient to read at dark place, press âModeâ + âSETâ simultaneously to turn off the wind meter, or no operation for 14 minutes it will auto shutoff. đăMULTIPURPOSE WIND DETECTORăâThis digital wind speed anemometer is perfect for industrial and home purposes, like measuring speed of HVAC velometer, air value testing, air temperature and humidity testing, air conditioner and temperature of CPU. The mini anemometer for sailing, shooting, hang-gliding, drone wind speed test, power and manufacture industrial. đăHANDHELD ANEMOMETERăâWind speed thermometer is compact and light design, small enough to put into pockets, easy to carry and operation. Hand size wind speed tester with simple but detailed manual. Please donât hesitate to contact us if you meet any question.