1Wide Application: Pointer tachometer fit for 1?8 cylinder gasoline engine and 12V/24V car, truck, boat, diesel generator engine, gasoline engine. 2High Accuracy: Using stepper motor drive pointer, precisely display the engine speed, with high indication accuracy, relatively simple driving and control. 3Lcd Display: Lcd display, ued to display Rpm of vehicles with 1?8 cylinder gas engine, measuring range 0?8000RPM. 4Compact Design: A black dial, silver 316L stainless steel case, high transparent lens and glowing red pointer. 5IP67 Waterproof: IP67 waterproof and dustproof, corrosion?resistant, durable to use even in acid, alkali and humid environments. 6Low Power Consumption: 9?32V ultra?wide long?term working voltage, and maximum up to 36V (1 minute). 7Vibration Resistant: With a snap together with the harness connector to achieve the secure connection, so that the tachometer gauge can work normally even under strong vibration.