Features: 1.Wide Application: Pointer tachometer fit for 1?8 cylinder gasoline engine and 12V/24V car, truck, boat, diesel generator engine, gasoline engine. 2.High Accuracy: Using stepper motor drive pointer, precisely display the engine speed, with high indication accuracy, relatively simple driving and control. 3.LCD Display: LCD display, ued to display RPM of vehicles with 1?8 cylinder gas engine, measuring range 0?8000RPM. 4.Compact Design: A black dial, silver 316L stainless steel case, high transparent lens and glowing red pointer. 5.IP67 Waterproof: IP67 waterproof and dustproof, corrosion?resistant, durable to use even in acid, alkali and humid environments. 6.Low Power Consumption: 9?32V ultra?wide long?term working voltage, and maximum up to 36V (1 minute). 7.Vibration 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. Specification: Item Type: Engine tachometer Material: ABS + 316L stainless steel RPM Tachometer Diameter: Approx. 85mm/ 3?3/8in Tachometer Indication Range: 0-8000 RPM. Working Voltage: 9?32V (12V/24V); Backlight Color: White or yellow Function: Current speed/speed and hour; fast response stepper motor, settable warning and buzzer, with everything needed for installation. Operation Mode: LCD display, stepping motor Working Temperature: ?30 ? +75 Storage Temperature: ?40 ? +85 Protection Level: IP67 LCD: ODO and trip/hour meter and subtotal Application: Suitable for car/truck/boat/diesel generator engine/gasoline engine