SynkTech MS6252B Digital Anemometer Wind Speed Air Volume Measurement USB Data uploading Air Humidity Flow Meter Anemometer STEADY WIND SPEED MEASUREMENT & HIGH ACCURACY The digital anemometer for measuring the ambient temperature, humidity, dew point temper. ESSENTIALS FOR BAD WEATHER.You will know the hurricane trend before going out. This meter can be used for hand-held or fixed measurement.This meter has the functions of reading. With LCD screen, backlight and multi-unit switching functions.