Easy to Read: 6 digital display hour meter, easy-to-read, count range: 99999.9 hour, count accuracy: 0.01; With the hour meter, you can now accurately keep track of the run times to perform oil changes and scheduled maintenance. Provide Data Reference: This quartz hour meter is specially designed for standard industrial timing and supplying data for the reference of maintenance duration for equipment. Multi-use: Mechanical Hour meter can work on any 12V-36V AC/DC device, widely used for boats, automobiles, motorcycles, ATVs, UTVs, go karts, snowmobiles, lawn tractors, shredders, pumps, generators, and more. Small Compact Size: Made of high-quality plastic material, novel design, compact size, easy installation, convenient to use. If you have any problem about our boat hour gauge tester, please feel free to contact us. Function: Featuring waterproof and steady performance, the hour timer gauge is used for tracking time on machinery such as engineering vehicles, various types of cars, and other devices where there is a need to record hours operated.