... Number:RS-C-4 Counter(Stepper Motor, Register, Cyclometer Metering Mechanism) Meter CounterModel Number:RS- ... duration: More than 80ms Maximum working frequency: 4Hz Ratio: 200:1 Power loss: Less than 0.04W(5V, 249ms and 2Hz ... dip tinnedCounter(Stepper Motor, the Register, Cyclometer Metering Mechanism) Meter Counter