Extech 45168CP Vane Anemometer, 20m/s Max, Measures Air Flow, Air Temperature, Air Velocity, Dew Point, Relative

The FLIR Mini Thermo-Anemometer with Built-in Compass is a pocket-sized meter that measures windspeed in multiple units, along with temperature, humidity, dew point, wet bulb, and wind chill.

Auto Power Off feature after 5 minutes of inactivity
Water-resistant housing that floats and is drop-tested to 6 feet
Built-in Compass for wind direction and 360° readings
Delta T function displays Air Temperature minus Dew Point
Max function recalls highest windspeed reading over time
Complete with CR2032 lithium battery and lanyard for convenience