特點(diǎn)3999最大顯示自動(dòng)/手動(dòng)量程切換電容/頻率測(cè)量短路蜂鳴器/二極管測(cè)試大容量保險(xiǎn)絲提供10A電流檔保護(hù)數(shù)據(jù)保持/對(duì)比模式真有效值/RS-232C接口規(guī)格：DCVOLTAGERange400mV,4V,40V,400V,1000VBestAccuracy∮(0.8%rdg+1digit)InputImpedance10MACVOLTAGE(40Hz~400Hz)Range4V,40V,400V,750VBestAccuracy∮(1%rdg+5digits)InputImpedance10MDCCURRENTRange400uA,4mA,40mA,400mA,4A,10ABestAccuracy∮(1%rdg+5digits)ACCURRENT(50Hz~400Hz)Range400uA,4mA,40mA,400mA,4A,10ABestAccuracy∮(1.5%rdg+5digits)RESISTANCERange400~40M6rangesBestAccuracy∮(1%rdg+2digits)CONTINUITYBEEPER Buzzersoundsifconductancelessthan70DIODETESTOpenCircuitVoltageapprox.1.5VtypicalCAPACITANCERange40nF,400nF,4F,40F,100FBestAccuracy∮(3%rdg+5digits)FREQUENCYRange10Hz~10MHzBestAccuracy∮(0.1%rdg+3digits)TEMPERATURE()Range-40~1000BestAccuracy∮1+3SPECIALFUNCTION Dutycycle,AutoRanging TrueRMS,RS232CLCDDISPLAY 3999countsPOWERSOURCESingle9Vbattery(6F22)ACCESSORIES InstructionmanualBatteryTestleadsDIMENSIONS WEIGHT85(W)x177(H)x40(D)mmApprox.330g