Extech 45168CP Mini Thermo-Anemometer and Compass is a pocket-sized foldable meter designed for measuring Windspeed, Temperature, Relative Humidity, Dew Point, Wet Bulb, and Windchill with a 360-degree built-in compass for wind direction measurement. The Extech 45168CP is easily calibrateable for high accuracy, has a water-resistant housing that has been drop tested to 6 feet, and is designed with a replaceable non-corrosive plastic wind vane (impeller). The 45168CP also includes a tripod stand for hands-free use.