1、High Indication Accuracy: The pointer is driven by a stepping motor to accurately display the engine speed. It has the characteristics of high indication accuracy, versatility, reliability and stability, and relatively simple control. 2、Weatherproof: IP67 waterproof and dustproof, 316L stainless steel bezel, and equipped with anti‑fog curved glass, it can be used for a long time even in acid, alkali and humid environments. 3、Low Power Consumption: The stepping motor is suitable for the whole series of stepping instruments, and has the advantages of low power consumption, long life and high precise. 4、Wide Working Voltage: Ultra‑wide working voltage design (long‑term working voltage: 9‑32V, maximum reach: 36V, (≤1 minute)). 5、Easy Connection: The wire harness connector has a buckle to achieve the best and firm connection, so that the gauge can work normally even under strong vibrations. 6、Wide Application: The speedometer can be widely used for engine/generator sets, ships, construction machinery, agricultural machinery, car modification, etc. Item Type: GPS Speedometer Material: Plastic+stainless steel Fixed Size: Approx. 85mm (3-3/8in) Indication Range: 0-120Km/h and 0-8000rpm Working Voltage: 12V/24V Access Voltage Range: 9-32V GPS blind zone odometer compensation Overspeed buzzer alarm (adjustable value) Indicator Lights: Left, high beam, right Backlight: Red Operating Temperature: -40 to 85°C Operation Mode: LCD display, stepping motor Application: 12V/24V vehicles, boats, yachts, RVs and other vehicles 1 x Tachometer 1 x GPS Antenna 1 x Manual