Digital Engine Tach Hour Meter Tachometer Gauge Engine RPM LCD Display For Motorcycle Motor Stroke Engine Car Boat Lawn MowerDescriptionTachometer and engine hour meter is easy installation a simple and easy to use product that gets the job done with minimal complication. Tachometer and engine hour meter simultaneously display engine speed and operating hours. It is suitable for all 2-stroke and 4-stroke gasoline engines. Built-in function for battery replacement.FeaturesDigital tachometer-Color: Black.-Material: ABS.-Size: 7.5x7.5x5 cm\/2.95x2.95x1.97 inch.Notes:Activate the tachometer and inductive hour meter before use:After installation, press the S1 and S2 buttons at the same time, the screen will start to display 00000 99999, and after two seconds, the screen will turn off.Press S1 (or S2 button) to activate the meter. The screen will display 0.0.Packing list1 * Engine hour meter1 * Button battery1 * 1.8m fixed wire1 * English user manualDigital Engine Tach Hour Meter Tachometer Gauge Engine RPM LCD Display For Motorcycle Motor Stroke Engine Car Boat Lawn Mower