New RL-HM016R Digital Resettable Inductive Tach/Hour Meter. Compatible with most 2-stroke or 4-stroke gasoline engines. Features a reliable timing system, RPM measurement system, and additional functional designs. Timing System includes: Total running hours (TOT), partial running time (PAr), and resettable partial timer. RPM Measuring System includes: Real-time engine RPM monitoring, MAX RPM recording within 5 seconds after engine shutdown, and 1-second RPM refresh rate. Unique Features include: Easy installation and IP68 waterproof rating. This tach hour meter records total running hours and partial operating time by inductive signal detection from the spark plug cable. Displays both total accumulated hours and partial running time. Partial timer can be viewed and reset as needed. Shows real-time RPM and total running hours during engine operation. RPM accuracy is within 10 RPM. Provides more accurate RPM readings compared to traditional analog tachometers with pointers. Notably, it captures and displays the maximum RPM reached during a single operating cycle, recorded within 5 seconds after the engine stops. Model Name: HM016R Dimensions: 6.8 cm (L) x 3.3 cm (W) x 1.4 cm (H) Voltage: 3 V Power Consumption: 0.001 W Applications: ATV, motorcycle, motor boat, lawn mower, generator Material: ABS Color: Black Package Contents: 1 x Speed Hour Meter 1 x Power Cord 2 x Cable Ties Note: Light shooting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.