... engine hour meter a self-powered,induction LCD hour meter,widely used on generator,lawn ower,motorcycle,car,truck etc Main functions:1.Apply: ... .Function1. Records of the apparatus working hours, resolution of 0.1 hours.2. Display testing engine R-speed, error ± 5 r ... hour.3. Display flashing and warning time can be based on the actual fuel tank fitted to adjust. JX1002 LCD engine digital hour meter ...