Frequency/Tacho/Linespeed/Inudstrial Frequency /revolution Meter 1.Input pulse signal 2.Inudstrial frequency with isolation China FG Series Digital Frequency/RPM Meter Frequency/Tacho/Linespeed/Inudstrial Frequency / revolution MeterFeatures:Seperate measurement for pulse signal/ industrial frequency parameterInudstrial frequency with isolation, stable performanceInput pulse signal for making use ...