Details: The Raymarine T120 is a wireless wind transmitter for micronet displays. A typical installation can be done in just a few hours, with your rig in place and your boat still in the water. And there's no need for holes in the bulkhead or cables. by the mast. Eliminating the wires on the mast not only reduces the weight of the spark plug, but also lowers the boat's center of gravity, giving a significant and immediate performance advantage. With clip-on mounts, your screen can be mounted can be placed anywhere on your boat, allowing you to see information where and when you need it.