Searon 12V 24V 36V 48V 60V 72V Digital Round Engine Hour Meter for Boats Automobiles Motorcycles ATV UTV Go Carts Digital Engine Hour Meter Round for Boats Automobiles Motorcycles ATV UTV Go Carts Operating Voltage: 4.5-90 Volt DC Resettable total hours read up to 99,999.9 hours with 0.1 hour resolution EEPROM: Data retained after power is off. 2 Years Warranty