1High 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. 2Weatherproof: 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. 3Low 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. 4Wide Working Voltage: Ultra?wide working voltage design (long?term working voltage: 9?32V, maximum reach: 36V, (1 minute)). 5Wide Application: The wire harness connector has a buckle to achieve the best and firm connection, can be widely used for engine/generator sets, ships, construction machinery, agricultural machinery, car modification, etc.