Boat Instrument Panel 4000RPM Tachometer Fuel Level Water Temperature Oil Pressure Meter Voltmeter 5 Dash Gauge Set Black Dial Item Type: Boat Instrument Panel Material: Aluminum alloy+ABS+stainless steel+tempered glass Function Display: 85mm tachometer can display: engine speed 0-4000RPM, 99999.9H timing; 52mm water temperature gauge shows water temperature: 100-250℉ (40-120 ℃); (Input signal: 301-22ohms) 52mm fuel level gauge shows the fuel volume of the fuel tank: F-1/2-E; (Input signal: 0-190ohms) 52mm oil pressure gauge can display the oil pressure of the oil tank: 0-10Bar (0-145psi); (Input signal: 10-184ohms) 52mm voltmeter can display battery voltage: 8-16V; Operation Mode: LCD display, stepper motor Working Voltage: DC12V circuit system; (Except for the voltmeter, the other four instruments can work in the DC24V circuit system) Working Current: ≤ 100 MA Working Temperature: - 30 ℃ -+75 ℃ Storage Temperature: - 40 ℃ -+85 ℃ Backlight Color: Red Protection Grade: IP67, can work at 1m underwater, excellent antifog function; Application: This instrument panel can be installed in the central control position of your RV yacht or engineering vehicle. It only needs 241 x 177mm / 9.5 x 7in unit area to combine the engine tachometer + water temperature gauge + fuel level gauge + oil pressure gauge + voltmeter, which greatly saves space and adorns your central control. The five instruments are equipped with red background light and red LED light needles, so that all parameters can be clearly viewed even at night, At the same time, the multifunction panel also comes with DIMMER ALARM RESET/TEST; ENGINE VOLT, ENGINE OIL PRESS, COOLANT TEMP, FUEL, GEAR OIL PRESS, SEAWATER FLOW, WATER IN FUEL and other functions, and the status of the engine can be known at any time through the panel data Application: The multifunction refitting panel can be used in the fields of engine, generator set, RV, yacht, fishing boat, ship, engineering machinery, agricultural machinery, refitting vehicle, etc. Stepping Motor Description: Stepping motor is a discrete value control motor that converts the electric pulse excitation signal into the corresponding angular displacement or linear displacement. This type of motor moves one step every time an electric pulse is input, so it is also called pulse motor.