Wind & Temp Meter: Measuring wind speed (0-30m/s, 0-5860 ft/min, 0-55 knots, 0-90 km/hr, 0-65 mph) and air temperature (14F and 113F) at same time, which allow you know the air speed and ambient temperature Multifunctional Wind Gauge: freely switch the units among (m/s, ft/min, knots, km/hr, mph), 12 level beaufort scales, Max/AVG/Current air velocity, C/ temperature switchable, wind chill and battery power indication Multipurpose Wind Detector: The digital wind anemometer is perfect for measuring speed of HVAC, air conditioner and temperature o CPU. The mini Anemometer also suit for sailing, shooting, kite-flying, drone wind speed test and industrial purpose Easy To Use: Just Open the door battery and install a CR2032 battery (Included), turn on the wind speed meter and you can measure the ambient air speed and temperature immediately Handhled Wind Anemometer: Compact and lightweight design, the small wind speed meter with a lanyard, which very convenient for carry with and operation. Auto power off when no any operation after 14 minutes