Searon 12V 24V 36V 48V AC/DC Digital Hour Meter Gauge for Marine Boat Engine Digital Hour Meter of 4.5-60 Volt AC/DC for Boats Automobiles Motorcycles ATV Lawn Tractors Generators Hours Display Reading: 999999 with running indicator and Automatically recycle to zero Memory capacity: CMOS EEPROM with over 25 years service lifetime With Sealed Epoxy encapsulated and Complete Waterproof CE & RoHS certification and Warrant 1 year