the JX1002 engine hour meter a self-powered,induction LCD hour meter,widely used on generator,lawn ower,motorcycle,car,truck etc ... of hour meter.3.Function1. Records of the apparatus working hours, resolution of 0.1 hours.2. Display testing engine R-speed ... , error ± 5 r / min.3. Warning and flashing function.4. Warning and flashing function1. The new hour meter ...