Raymarine Wireless Micronet Race Master System

The Race Master System offers you all of the benefits of the Race Master but can comes with a Micronet Hull Transmitter to provide boat speed and depth data. The System can then be further extended to allow the addition of Wind and GPS information as well as compatibility with the complete range of Micronet Displays. The system is also supplied with a Solar Panel to power the Hull Transmitter and a Triducer with flush fitting.

Owner's manual: https://productimageserver.com/literature/ownersManual/38324OM.pdf