Garmin Boat SwitchQuality Switching. Simple Installation - Get the integrated-boat experience with digital switching that allows you to operate onboard electrical functions right from your GPSMAP or ECHOMAP chartplotter. Features: Reduce reliance on traditional switches and fuses. Add digital control and software current monitoring.; Operate lights, pumps, horns, and more. Just tap your compatible chartplotter.; Fill up or empty out? See levels in four tanks - such as fuel, freshwater, greywater, blackwater, and livewell.; See system status. Monitor battery voltage, bilge pump operation, and more.; Set it up your way. Position and name switch with the easy-to-use interface.; Retrofit into your boat. It requires no special tools or configuration.; All-In-OneReplace existing two-element systems - fuse box and switches - for easier control and operation of onboard functions.Digital ControlGet control and protection of up to 20 circuits via your chartplotter rather than a physical button or switch.ON/OFF SwitchesThe toggle outputs operate bilge pump and nondimmable lights, such as nav lights and courtesy lights.Dimmable OutputsPress-and-hold dimmers let you set your preferred brightness on board. Momentary OutputsControl horns and more. Simply press and release for desired length of horn beep. Livewell TimerA built-in timer turns the pump to cycle the water to keep fish alive - and keep pumps functioning longer.Monitor TanksExperience built-in tank sender detection and calibration for as many as four tanks, such as fuel, freshwater, graywater, blackwater and livewell.Additional InputsSee analog voltages on house and start battery, monitor bilge pump operation, and connect optional physical switches.Upgrade Your BoatRetrofit into existing boats without special tools or configuration by using the included 18" flying leads and color-coded channel wires. WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. - cis2:mm5mnJlm -Brochure (pdf)