MATRIX SERIES - FUEL LEVEL GAUGE •Gauge set is intended to operate on Mercury SmartCraft® engines (max 4 engines/2 stations) utilizing the SmartCraft® protocol •Gauges operate on 12 volt systems & support single dual triple or quad engine applications •3'' tachometer is the master & connects directly to the SmartCraft® data bus - all other gauges are slaves & connect to the tachometer RS-485 private bus (immune to electrical noise more robust & reliable) •Tachometer reads SmartCraft® engine parameters & forwards them on the private bus for the slave gauges •LCD on tachometer & speedo displays all available data & alarms •IP67 waterproof/submersible housings (w/connector fitted) •Dry nitrogen filled to minimize fogging •LED dimmable automotive style backlighting (red) •CANbus connectivity Style: 2" Primary