频率计数器(TTITF930Instrument)DetailInfomationTF9303GHzbench/portableuniversalcounterwithUSBinterface-NEWTF930-3GHzUniversalFrequencyCounterFrequency,period,pulsewidth,frequencyratiodutycycle,andeventcountermodesDCto3000MHzrange,0.001mHzresolutionHighimpedancemeasurementupto125MHzACorDCcoupling,1M/50Ohmselection,polarityinvertSwitchableattenuator,thresholdcontrolNoisefilterforlowfrequencymeasurementsSelectablemeasurementtime;displayholdfunctionLarge10digitdisplaywithfullrangeofannunciatorsInternalrechargeablebatteriesforportableuseUSBinterfaceprovidesfullremotecontrolandreadback详细资料及联系方式见：http://Email：kenny.ma@)