This series of products is one of the latest high-tech products developed and researched by our company, which is unique in the world. Uses: Widely used in generators, weeders, water pumps, various types of generators, steam engines, edge grinding machines, and can also be used in automobiles, trucks, engineering vehicles, motorcycles, engineering machinery and other industries. Operating instructions: please see the company's website instructions. Timing range: seven-digit LCD0-19999.59 Installation size: center distance 38mm 2xφ4 (mm)