Characteristics: new and high quality tachometer/hourmeter, with large LCD display. Ideal for car engines operating in the 25,000+ RPM range. Works on any 2 or 4 stroke gas engine. With reset to zero hour function, the hour meter reads up to 10000 hours then resets to zero and the tachometer can read up to 99,999 RPM Programmable maintenance hours setting with service , a reminder when changing the oil or other service. With black wire wrap around the spark plug wire, it can work on all ignition engines by selecting engine type using S1 and S2 buttons. Splash proof and easy installation, New Hour Meter Tach For Motorcycle ATV Snowmobile Boat Gas Engine. Large LCD tachometer/hourmeter display. Ideal for car engines operating in the 25,000+ RPM range. Outboads, Quads, Jetskis, motorcycles and dirt bikes. Modifiable to zero hours. For all spark ignition engines. Splash proof. After the reset, the data will be deleted Press and hold the S1 key until 05 is displayed, Release the S1 key, 8-10 seconds after the display returns to Total Time. Press S1 and S2 at the same time, do the data from 01-09, the system will be reset, all the data will be deleted, the default speed mode is 02 Note: it can replace the battery, it's not completely waterproof. Material: ABS colour: black Package Contents: 1 x Tachometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Press and hold the S1 key until 05 is displayed, Release the S1 key, 8-10 seconds after the display returns to Total Time. Press S1 and S2 at the same time, do the data from 01-09, the system will be reset, all the data will be deleted, the default speed mode is 02 Characteristics: new and high quality tachometer/hourmeter, with large LCD display. Ideal for car engines operating in the 25,000+ RPM range. Works on any 2 or 4 stroke gas engine. With reset to zero hour function, the hour meter reads up to 10000 hours then resets to zero and the tachometer can read up to 99,999 RPM Programmable maintenance hours setting with service , a reminder when changing the oil or other service. With black wire wrap around the spark plug wire, it can work on all ignition engines by selecting engine type using S1 and S2 buttons. Splash proof and easy installation, New Hour Meter Tach For Motorcycle ATV Snowmobile Boat Gas Engine. Large LCD tachometer/hourmeter display. Ideal for car engines operating in the 25,000+ RPM range. Outboads, Quads, Jetskis, motorcycles and dirt bikes. Modifiable to zero hours. For all spark ignition engines. Splash proof. After the reset, the data will be deleted