Digital Hour Meter Tachometer, Maintenance Reminder, Replaceable Battery, Auto Shut-Off, Use for ZTR Lawn Mower Marine Tractor Generator ATV Snowmobile and Equipment

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.

MAINTENANCE REMINDER：Programmable maintenance timer (SERVICE), countdown maintenance reminder time; When the maintenance time is coming, the service warning icon will flash to remind.

SPEEDOMETER：Accurately records your RPM when engine is running, helps to adjust engine idle speed ; 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.