Tinor - Digital Hour Meter Tachometer, Maintenance Reminder, Replaceable Battery, Auto Shut-Off, Use for ztr Lawn Mower Marine Tractor Generator atv

Hour meter：Contains tachometer, hour meter, service meters; helps you track how many hours you have spent on your engine. The total number of hours can be reset; 0.1 hour accuracy. SERVICE REMINDER：Programmable maintenance timer (SERVICE), countdown maintenance reminder time; When the maintenance time comes, the service warning icon flashes to remind. SPEEDOMETER：Accurately records your RPMs when the engine is running, helps adjust engine speed when idling; can be programmed for different engine firing modes. REPLACEABLE BATTERY：Internal replaceable CR2450 battery, data retained after battery replacement; When the engine is stopped, the player will automatically turn off after 2 minutes; press the button to read the screen, data retained after shutdown.