2pcs Digital Hour Meter Tachometer Maintenance Reminder User Shutdown Lawn Mower Product Feature: Hour Meter: Contains tachometer, hour meter, service timers ;Help you track how many hours you put on your engine.When engine is off, display shows total run time of engine and remains visible. Total hours can reset ; 0.1 hours accuracy; Maintenance Reminder: Programmable maintenance interval service timer(SERVICE ),Countdown tracking service reminder time; When the maintenance time arrives, the service warning icon flashes to remind; Tachometer: Accurately records your RPMs when the engine is running , Help adjust engine idle;Can be programmed for different engine firing patterns; Shutdown: Internal CR2450 battery , Operation button can be turned off. Other: Easy to install; Contains detailed instructions for use; Waterproof rating: IP65; CE ROHS certification. Product Specification: Type: Digital Hour Meter Tachometer Qty: 2pcs Material: ABS Color: Black Display: LCD display Screen size: 42 x 12.5mm Voltage: 3V Button type: tact switch Refresh rate: 1s RPM measurement range: 0 to 25,000RPM Timing range: 0-99999 hours Maintenance reminder range: 0-9999.9 hours Speed: 0-30000RPM Speed accuracy: 10RPM Timing accuracy: 0.1hours Waterproof rating: IP65 Induction line length: 1.7Meters Size: Approx.73 x 41 x 20mm (max.) Net Weight: Approx.145g Package Included: 2x Digital Hour Meter Tachometer