Features: 1.Has excellent anti?fog 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 multi?plug terminal connection, applicable to the modification of various vehicles. 6.Suitable for car/truck/boat/diesel generator/gasoline engine tachometer. Specification: Condition: Brand New_x000D_ Item Type: Tachometer_x000D_ Material: Stainless Steel+ABS_x000D_ Optional Color: White Dial Silver Frame, Black Dial Silver Frame_x000D_ Voltage: 12V / 24V_x000D_ Installation Diameter: Approx.85mm / 3.3in_x000D_ Working Current: 60MA_x000D_ Speed Ratio: 1-300 adjustable_x000D_ Function: Current Tacho/RPM and Hour_x000D_ Operation Mode: LCD Display, Stepping Motor_x000D_ Protection Grade: IP67 for Front Side; IP65 for Back Side_x000D_ Application: Suitable for Car/Truck/Boat/Diesel Generator/Gasoline Engine Tachometer PackageList: 1 x Tachometer1 x Instruction Manual