Being aware of the rudder position enhances safety and is of great help while docking or maneuvering. Designed for heavy-duty commercial use, the RFU 1300 is waterproof and shock resistant. It features a "contactfree" hall effect device that virtually eliminates the wear commonly experienced with potentiometers. All the electronic circuitry necessary for a rudder feedback signal and a rudder angle indicator signal is contained within the RFU 1300.