•The function of the gauge includes wind speed measurement, wind measurement, wind temperature measurement •180° rotating fan. According to the direction of the wind, adjust the fan in real time to measure different scenarios •LCD automatic backlight, can measure in dark environment •Short press "UNITS" to switch measurement mode, short press "MAX/LEVEL" to switch wind speed/wind temperature Specifications: •Working height: 2000m •Measurement method: fan sensor •Display: LCD •Maximum display: 9999 •Sampling rate: about 0.4 seconds •Automatic shutdown: about 10 minutes •Working current: 5mA •Power supply: 1.5Vx2AAA (not included) •Working temperature: 0~50℃ •Working humidity: 0~85%RH •Storage temperature: -10~60°C •Storage humidity: 0~80%RH •Size: 170mmx47mmx24mm Package included: •1 x Wind Speed Gauge •1 x Screwdriver •1 x English User Manual