The *-bit electromagnetic counter produced by our company used in recording cumulative total of the number of times of electronic pulse signal.It can be composed the digital indicator with the second apparatus, widely applied , cin petroleumhemical engineering, textile, mechanic, mine, national defense, agriculture, food and printing etc all works of lifes electric impulse counter.After the electric signal to the counter, produce the suction in electromagnet in order to let gag bit spur escapement mechanism then spur the digital rotate cycling calculating in decimal scaler.