GY144B tachometer,engine hour meter with powerful macroprocessor and memory techniques, is the latest achievement of our companys development group. It is a self-powered LCD tachometer (regardless of the cut of power), with LCD display. This kind of tachometer is easy to operate, can be used to maintain and reserve the instruments, can acts to record the working time and continuous speed presentation of operation. It can be widely utilized in generator, weeding machines, water pumps, different kinds of motors, steam engines, edger machines, automobiles, trucks, motorbikes, machineshop trucks, go-anywhere vehicles, go-carts, water motors, construction machines, instruments and etc..