數字絕緣測試儀+數字萬用表型號：BM3549Digital M Hitester Digitalmultimeter面板校正PanelCalibrate,自動量程AutoRange 33/4位Digit,最大顯示MAX Display:3999過載保護 OverLoad Protection帶背光Backlight,量綱及功能符號指示FunctioncharactersIndication能直接測量絕緣電阻測試電壓Cantest InsulationResistanceMeasuremeatVoltage絕緣電阻InsulationResistance:400k ~40G 精度Accuracy:400k ~200M 3% 5,200M~4G 5% 5,4G~40G 10% 5測試電壓MeasuemeatVoltage：500V/1000V/2500V短路電流shortcircuitcurrent:不小于1.5mA測試時間選擇Measuemeattime:1/2/10min(分)萬用表功能：直流電壓DCV:400m/4/40/400V 0.5% 5,1000V 0.8% 2交流電壓ACV:4/40/400V 0.8% 5,700V 1% 5直流電流DCA: 40mA/400mA 0.8% 5交流電流ACA: 40mA/400mA 1% 5電阻RESISTANCE:400/4k/40k/400k 0.8% 5,4M 1% 3,40M 3% 3