TF9303GHzbench/portableuniversalcounterwithUSBinterface-NEWTF930-3GHzUniversalFrequencyCounter Frequency,period,pulsewidth,frequencyratio dutycycle,andeventcountermodes DCto3000MHzrange,0.001mHzresolution Highimpedancemeasurementupto125MHz ACorDCcoupling,1M/50Ohmselection,polarityinvert Switchableattenuator,thresholdcontrol Noisefilterforlowfrequencymeasurements Selectablemeasurementtime;displayholdfunction Large10digitdisplaywithfullrangeofannunciators Internalrechargeablebatteriesforportableuse USBinterfaceprovidesfullremotecontrolandreadback