Raymarine Wireless Mast Rotation Transmitter [T221] Brand_Onyx Outdoor Even works well with "short

Even works well with "short butt" fly rods

Transducer Y-Cable

Box Dimensions: 1"H x 7"W x 8"L WT: 1

When you need maximum torque and strength

Raymarine Wireless Mast Rotation Transmitter [T221] Brand_Onyx Outdoor Even works well with "shortThis unique transmitter compensates for the movement of a rotating mast to ensure that you get the most accurate wind readings at all times. Operating as a wireless device on a Micronet network the Mast Rotation Transmitter compares compass information from the boat with its own information and corrects the wind angle coming from a standard wind transmitter at the mast head. Features: No wires Solar powered Light weight Quick Guide (pdf)