Features: 1.12V/24V speedometer, with an indication range of 0?160MPH. The pointer is driven by a stepping motor, which can accurately display the vehicle speed. 2.The LCD display can clearly display the mileage. High reliability, good stability, and relatively simple drive control. 3.It can be used for engine/generator sets, ships, construction machinery, agricultural machinery, automobile modification, etc. 4.316L stainless steel, can be used for a long time even in acid, alkali, and humid environments. Curved glass, good anti?fog effect. 5.IP67 waterproof and dustproof grade, it can work underwater 1m position, which is practical to use. 6.The wiring harness connector has a buckle to form the best firm connection, and it can work normally even under strong vibration. Specification: Item Type: Speedometer Material: Metal + Plastic Functions: Display current speed and total mileage Operation Mode: LCD display, stepper motor Install Diameter: Approx. 85mm/3.3in Operating Voltage:12V/24V Indicating Range: 0-160MPH Operating Temperature: -30-+75 Storage Temperature: -40-+85 Protection Class: IP67, can work underwater 1m position PackageList: 1 x Speedometer 1 x Power Cord 1 x Manual