The MetSens200 compact weather sensor measures wind speed and direction using an ultrasonic sensor and integrated electronic compass. This allows for accurate, relative wind direction measurements without precise installation orientation. The sensor provides WMO average wind speed and direction, as well as gust data. The MetSens200 is compatible with Campbell Scientific data loggers and the MeteoPV Solar Resource Platform via SDI-12, RS-485, ModbusRS-485, or NMEA RS-232.