BM890D31/2位,最大显示:1999 过载保护,电源自动关机直流电压:200m/2/20/200V 0.5% 5,600V 0.8% 5交流电压:200mV 1.2% 5,2/20/200V 0.8% 5,600V 1.2% 5直流电流: 20mA 0.8% 5,200mA 1.2% 5,10A 2% 5交流电流: 20mA 1.2% 5,200mA 1.8% 5,10A 3% 7电阻:200/2k/20k/200k/2M 0.8% 5,20M 1% 5,200M ( 5% 10)-10电容CAP:2n/20n/200n/2uF 3% 5,200uF 5% 5通断测试二极管正向压降、三极管电源:6F22或orNEDA 9V 1外形尺寸:170 92 43mm重量:约320g(含电池)