SEARON DC 12v 24v 36v 48V 60V 72V Quartz Hour Meter Round for Marine Boat Engine Motocross Marine Motorcycle Snowmobil ATV Boat Generators Tractor Lawn Mower Green Quartz Hour Meter Round for Marine Boat Engine Motocross Marine Motorcycle Snowmobil ATV Boat Generators Tractor Lawn Mower Green Operating range is 6 to 80 Volts DC input. Hours Reading 99,999.9 hours and 0.01 Quartz accuracy. The hour meter fits in to a 2" round hole and includes an adjustable retrainer clip so that the meter can be mounted on material up to 9/32 inch thick. Meter depth behind the panel is 1.5 inches Common Applications: Boats, automobiles, motorcycles, ATV, UTV, Go Carts, Jet Ski, Snowmobile, Lawn Tractors, Wood Chippers, Shredders, Pumps, Generators and many more