.Frequencymeasuringrange0.1Hzto100MHzinAinput80MHzto3.0GHzinCinput2.Period,TotalandRPMmeasurementforinputA3.Digitdisplaywith0.01mHzresolutionin1Sec(ByExt.Referencesignal)4.RS-232Cserialinterfacefunctionforcommunicatingwithcomputer5.HighsensitivityExternalreferenceinputfunction(≥1.5Vrms)6.Reciprocaltechniqueforhighresolutionatlowcountingfrequencies7.Selfcheckfunctionexecutedtoperformaautomaticselfdiagnosisofvariouscounterfunction8.Push-scanningforselectingFunctionandGatetime9.Low-passfilter(100kHz,-3dB)installedforremovingnoisesignalinlowfrequencymeasuring10.AC/DCcouplingfunction(SelectableAC/DCCoupling)11.10:1InputAttenuation(Selectable×1/×10Attenuator)12.DataholdfunctionDisplay