Maintenance Reminder Auto Shutoff Replaceable Battery Runleader Digital <p>Hour Meter ---- Contains tachometer, hour meter, service meters; helps you track the number of hours you have spent on your engine. Total hours can be reset; 0.1 hours accuracy</p> <p>MAINTENANCE REMINDER ---- Programmable maintenance timer (SERVICE), countdown maintenance reminder time; When maintenance time comes, the service warning icon will flash to remind</p> <p>TACHO METER ---- Accurately records your RPM when the engine is running, helps adjust engine idle speed; can be programmed for different engine firing modes</p> <p>REPLACEABLE BATTERY ---- Replaceable CR2450 internal battery, data retained after battery replacement; When the engine is stopped, the meter will automatically turn off after 2 minutes; press the button to read the screen, data retained after shutdown</p> <p>OTHER ---- Easy to install; Contains detailed instructions for use; Waterproof rating: IP65; Patent, CE ROHS certification, 2-year warranty</p>