【Pro Multifunction Anemometer】 Wind speed, temperature, wind chill and battery power all in one LCD display. The portable digital anemometer measures wind speed in 5 units: m / s, km / h, ft / min, knots, mph. Temperature measurement in ℃, ℉. 【High Precision Wind Meter M Wind speed meter to measure the wind speed range 0.67 to 67.1 mph (± 5% of wind speed). 0.2. Upgraded wind meter with dual wind sensors, 8 vanes. Standard result, precise result. 【Save your battery】 Auto power off, manual / auto backlight function, data retention, data logger, LCD backlight automatically turn off, power off adjustable time, to save your batteries .. 【Portable anemometer】 Lightweight and small in size, this ventometer is easy to take along for outdoor activities, such as: shooting, boating, kite flying, climbing, cycling, shooting, drone, etc. 【Wireless Bluetooth Anemometer】 The anemometer can automatically pair with your iPhone, iPad, Android phone and tablet through the Bluetooth APP. A quarter-size metal hole at the bottom allows you to mount the player on a tripod for permanent testing. It can also save the data and export it to Excel, TX format. This is the ideal wind speedometer for weather station, sailing and long distance shooting. Product description Features: Resolution: 0.1m / s Wind speed range: 0.3 ~ 30m / s Temperature range: -10 ~ 45 (14 ~ 113) Wind speed accuracy: ± 5% of reading Battery type: 2 * 1.5V AAA Battery Wind speed unit selection: m / s, Ft / min, Knots, Km / h, Mph Features: ℃ / ℉ Mobile app Back Light MAX / MIN Average / Current Wind chill indication Low battery indication Manual / automatic switch-off Why choose the BT-100APP digital anemometer? Easily store and control the Control anemometer and export and store data on your phone by connecting to the phone software via Bluetooth. Good helper for electrical devices and outdoor activities BT-100APP anemometer on electrical devices and heating, ventilating and air conditioning (HVAC) devices like fans, heaters and air conditioners. Used in skydiving, shooting, snow sports, boating, sailing and competitions. Easy to use and the CarryBT-100APP wind speedometer is compact and easy to use with electronic instruction. can be read even in low light areas. WHAT YOU GET? 1 * BT-100APP Digital Anemometer 1 * protective bag 1 * User Manual