The Ultrasonic Anemometer is designed to simultaneously measure the 2-dimensional horizontal components of the wind speed and direction based on principle of TOF (time of flight) of ultrasonic sound wave. Low power chip make its power consumption low to 0.2W. By using ABS shell allows a lighter weight and robust structure. Our anemometer was made in molded thermoplastic, also known as ASA, which has high outdoor weather ability. ASA is extremely resistant against UV radiation of sun, it is frost and heat resistant, standing all climatically conditions. The product is widely used in the automotive industry as well as several other outdoor applications. Low to 0.1W consumption No moving or wearing parts Anti-corrosion No inertia problem Sensitive and prompt response Easy installation No need to re-calibrate No dead band 0-359°