WeatherRack - Anemometer / Wind Vane / Rain Bucket designed for SwitchDoc Labs WeatherPiArduino Board and Raspberry Pi/Arduino Includes Open Source Software for Arduino and Raspberry Pi Measures Wind Speed / Wind Direction / Rainfall For meterologists, weather hobbiest, and building your own weather station. Simple non-active electronic Interface. Uses sealed magnetic reed switches and magnets. All of the sensors are supplied with RJ11 Terminated Cables Full Documentation and Software for Raspberry Pi and Arduino on www.switchdoc.com