1、Maximum 99999.99H: This boat hour meter supports 99999.9H maximum hours, perfect for tracking engine time, provide standard industrial timing and data for your car and other equipment. 2、High Accuracy: This mechanical hour meter is featured with high accuracy and compact size, the results can be easily read, suitable for 10‑60V AC or DC operating voltage. 3、Wide Application: This mechanical hour meter gauge is suitable for boats, cars, motorcycles, ATV, UTV, karts, motorboats, snowmobiles, lawn tractors, wood chippers, paper shredders, pumps, generators, etc. 4、Durable Material: This engine hourmeter is made of premium plastic material which is strong and highly durable, effectively resistant to impact, long service life. 5、Easy Installation: This round hourmeter is about 4 inches wide, and it can be easily installed without complicated steps and tools, saving your time and effort. 1 x Boat Hour Meter Item Type: Boat Hour MeterMaterial: PlasticApplication: Suitable for Providing Standard Industrial Timing And Data Supply for Engineering Vehicles, Ships, Motorcycles, All Kinds Of Automobiles And Other EquipmentProduct Size: Approx. 6 x 6 x 5.5cm / 2.4 x 2.4 x 2.2in ( Manual Measurement, Slight Error May Exist )