The gWind transducer features twin-fin technology with 3-bladed propeller for more accurate TWS in lighter air while the twin-fin design gives a more stable TWA. The 3-bladed propeller, unlike a cups design, is always efficient. Combined with optic reading this transducer provides superior accuracy at low wind speeds and also provides for excellent linearity. The supplied GND10 black box bridge allows shared communication of critical NMEA 2000 data between compatible chartplotters and instruments.