CMF-48E digital counter meter 1.4-digit LED indicators, small counter 2. ... -up, Thumb switch 3.Counter, meter, 4.CE CMF-48E digital counter meter1.4-digit LED indicators, small counter2.Count-up ... units4-digit LED indicatorsCounting frequency30Hz~2KHzRange1~9999Input signalContact input, Impulse level,Input channel1 input channelOperation methodCount-upOutput modeF, CReset / ZeroManually reset ...