Garmin gWind Wireless G2 A02451 Wind Transducer Vane Sensor MHU Silva NEXUSProfessionaly refurbished with full warranty. New batter installed. Eliminate Wires Through Your Mast P N: 010 01616 00 An easy to install solution that eliminates running wires through masts up to 50 feet 3 bladed propeller for more accurate wind speed in lighter wind conditions Twin fin design gives a more stable wind angle Solar panel mounted on the transducer arm Internal solar charged battery lasts 3 years and is easily replaced The gWind