JDM12 series contactor is a new generation and small volume counter produced by our company, it adopts latest style monolithic microcomputer with excellent performance as primary control unit, it has merits of high precision, wide range counting, display show, strong anti-jamming performance and beautiful looking etc. This series electronic counter is widely used for counting display, counting control in fields such as packing, printing, pharmacy, food, textile, paper making, ceramic, petroleum, chemical industry and metallurgy etc, and also can used for display and autocontrol of parameter like revolution, length and so on. It is quite popular among customers and has already been equipped for export.