... Speed with the Gasoline engine, ATV, Motorbike, Motorboat. JX1002 digital hour meter function1.Apply: It is used to record working hours for ... engine R Speed with the Gasoline engine, ATV, Motorbike, Motorboat. 2,Signal input 1. Signal input is a wire around four ... , another section of wire can be inserted wireing trough of hour meter. 3, FunctionRecords of the apparatus working hours, resolution of 0 ...