1Integrated digital display of engine speed, oil pressure, engine cooling water temperature, battery voltage and other functions, with cumulative engine hours. 2Has alarm function, like oil pressure alarm, high temperature alarm, and low battery voltage alarm. 3This multifunction gauge is universally suitable for s and yachts. 4Supports for NAME 2000 protocol network data input, with better performance. 5Can connect the standard M12 waterproof connector, more reliable and practical.Condition: 100% brand new Item Type: Multifunction gauge Material: 316 stainless steel+ABS+PC Optional Color: Black, whiteApplication: Suitable for boats and yachts Power Supply: 12V/24V Working Voltage: 9V-32V Working Temperature: -20-70 Diameter Size: Approx.85mm / 3.3in Waterproof Rating: IP67 Engine Speed: 0-9999 RPM Engine Oil Pressure: 0-10 bar Engine Temperature: 40-120 Battery Voltage: 9-32V Total Engine Hours: 0.0-9999.9 hours Sensor Failure Alarm Alarm Information: 1. Alarm of oil pressure sensor disconnection, alarm of low oil pressure 2. Alarm of water temperature sensor disconnection, alarm of high temperature 3. Low battery voltage alarm Input Parameter: For NAME 2000 protocol network data Wiring Method: Connect the standard M12 waterproof connector"Micro-C" Cable Length: Approx.1m/3.3ft 1 x Meter1 x User Manual