Feature: 1. EROSION RESISTANT MATERIAL: Digital anemometer is made of excellent ABS material, long lasting, wear resistant, erosion resistant, and can adapt to a variety of harsh environments 2. VARIOUS FUNCTIONS: Digital anemometer support wind speed measurement, air volume measurement, wind measurement, wind temperature measurement, dew point or wet bulb temperature, support data locking, minimum or maximum locking, ambient temperature, ambient humidity, low voltage warning, automatic shutdown 3. WITH LCD BACKLIT: This digital anemometer accurately measure wind speed and temperature on a bright backlit LCD screen, with a low battery indicator, and automatic backlit, measurement can also be made even in dark environments 4. A VARIETY OF UNITS: Handheld digital anemometer can accurately measure 6 units of wind speed: m/s, km/h, knots, ft/s, mile/h, ft/m; Three unit air volume measurement: CMM, CFM, CMS; The wind temperature is measured in ℃/℉(Celsius or Fahrenheit) 5. MULTI PURPOSE DISPLAY: Digital wind speed meter is widely used in wind energy, meteorology, industry, navigation, environmental protecting, highways, airports, fan manufacturing, ventilation engineering, etc. 6. EIGHT BLADES AND SENSOR: Air velocity meter with highly sensitive blades and sensors, possess fast response time, more accurate data acquisition 7. FLEXIBLE AND ADJUSTABLE: The air velocity meter has a 180 degree rotating fan, which can be adjusted in real time according to the direction of the wind to measure different scenarios Specification: Item Type: Digital Anemometer Working Height: Approx. 2000m / 6561.7ft Working Mode: Wind speed frequency conversion Display: LCD Maximum Display: 9999 Sampling Rate: Approx. 0.4 seconds Auto Shutdown: Approx. 15 minutes Low Battery Indication: LCD display symbol Operating Current: Approx. 40mA Battery: 3 x 1.5V AAA(not included) Resolution: 0.01m/s, 0.1℃, 1%RH Ambient Temperature: -20℃~60℃/+1.0℃, -4℉~140℉/+2.0℉ Dew Point Temperature: -50℃~60℃, -58℉~140℉ Wet Bulb Temperature: -20℃~60℃, -4℉~140℉ Humidity: 0~99%RH/+5%RH (no condensation environment) Product Size: Approx. 252 x 84 x 33mm / 9.92 x 3.31 x 1.3in. Package List: 1 x Main Unit 1 x Screwdriver 1 x User Manual 1 x Pouch