Raymarine Wireless Mast Rotation Transmitter [T221] Lighting they were also able to

they were also able to withstand pull loads that averaged over 200x their own weight

Frequency:    VHF Marine Band

Displays amperage from 0 to 150 Amps

25" or H 95

Raymarine Wireless Mast Rotation Transmitter [T221] Lighting they were also able toThis 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)