Feature:1. High Quality Material: Digital hour meter is made of high quality ABS material, wear resistant, anti scratch, sturdy and durable.2. Multifunction: Inductive hour meter has timer function and maintenance reminder, high accuracy, automatic storage data, no lost for more than 20 years.3. IP68 Waterproof: Waterproof grade is IP68, RPM counter can be used normally in heavy rain and other harsh environment, has a long service time.4. Wide Application: Hour meter is suitable for generators, lawn mowers, motorcycles, automobiles, trucks, engineering vehicles and more.5. Easy Installation: Double sided adhesive tape fixed, can be installed near the engine anywhere, convenient for using, save your time and energy.Specification:Item Type: Hour MeterMaterial: ABSPower volt Voltagege: 3 (V)Timer Range: 0-99999HTiming Accuracy: 0.1/1hMaintenance Reminder: 5H 10H 20HDisplay Mode: LCDWaterproof Grade: IP68Battery: 1 button battery CR2050 3V 350mAh (shipped with built in battery)LCD Display: Viewing direction 6 o' clock5 Digit Digital Display: Font height approx. 5.8mm/0.23inLCD Temperature Endurance: -30C to +80CTiming Reminder Function:CLEAN flashes at an interval of 5 hours to remind the air filter to be cleaned. 5 seconds long press button reset.The interval of 10 hours OIL flashing, remind OIL change, 5 seconds long press button reset.The VALVE flashes at an interval of 20 hours to remind VALVE maintenance, and the 5 seconds long press button reset.Fitment: Widely used in hand push lawn mowers, riding lawn mowers, chainsaws and other garden machinery; Rammer and other road machinery; Jet ski, outboard motor and other Marine industry; Motorcycle, off road vehicle, ATV, snowmobile and other vehicle industry; Portable generator, rv generator and other generator industry; Power paraglider and other sports equipment; Branch breaker, lawn mower, seeder and other agricultural machinery; And other gasoline engine spark plug equipment.Package List:1 xHour Meter2 x Cable Ties1 x Wiring