An anemometer is a device used for measuring wind speed, and is a common weather station instrument. This well made anemometer is designed to sit outside and measure wind speed with ease. Now we add a crowtail interface to it so that we can use it with our crowduino. The sensor is rugged, and easy to mount. The cable can easily disconnect with a few twists and has a weatherproof connector.

• W = 0; (f = 0)
• X = 0.1 + 0.0875 × f (f ≠ 0)
• (W: wind speed indication (m / s); f: the frequency of the pulse signal)