Feature:1. Has excellent antifog function, with better performance and high reliability.2. With IP67 protection grade, the whole shell is completely waterproof, and it can be used for a long time at sea.3. This tachometer uses a stepping motor to drive the pointer, accurately displays the engine speed, and uses LCD to have clear hour display.4. Features with high indication accuracy, repeatability and versatility, reliability and stability, relatively simple drive and control, and so on.5. Easy installation through multiplug terminal connection, applicable to the modification of various vehicles.6. Suitable for car/truck/boat/diesel generator/gasoline engine tachometer.Specification:Condition: 100% Brand NewItem Type: TachometerMaterial: Stainless Steel+ABSInstallation Diameter: Approx.85mm / 3.3inWorking Current: 60MASpeed Ratio: 1-300 adjustableFunction: Current Tacho/RPM and HourOperation Mode: LCD Display, Stepping MotorProtection Grade: IP67 for Front Side; IP65 for Back SideApplication: Suitable for Car/Truck/Boat/Diesel Generator/Gasoline Engine Tachometer.Package List:1 x Tachometer1 x Instruction Manual