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Raymarine T121 Hull Transmitter
*For multi-hulls, advanced Micronet technology allows your displays to use wind direction to automatically determine which hull transducer supplies the information you need. No switches required.
*Note: you need two hull transmitters for this configuration.
Quick Guide (pdf)Owner's Manual (pdf)
![Raymarine T121 Hull Transmitter [T121] - Essenbay Marine](http://essenbaymarine.com/cdn/shop/products/38312XL_{width}x.jpg?v=1680044096)
![Raymarine T121 Hull Transmitter [T121] - Essenbay Marine](http://essenbaymarine.com/cdn/shop/products/38312XL_1024x.jpg?v=1680044096)