Raymarine Wireless Mast Rotation Transmitter [T221] Outdoor | Compasses - Magnetic tolerance held to

tolerance held to

Anchor has wing nuts and bolts for assembly/disassembly without tools

PN:  7039

or the Asian Multifunctional Transport Satellite-based Augmentation System (MSAS) to provide better than 3m accuracy

Maximum Hull Thickness Inches: 2-1/4

Raymarine Wireless Mast Rotation Transmitter [T221] Outdoor | Compasses - Magnetic tolerance held 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)