GDM-8245 (CE)双显示50000位数台式数字万用表GDM-8246 (CE)双显示50000位数台式数字万用表RS-232CGDM-8246G (CE)双显示50000位数台式数字万用表RS-232C+GPIBGDM-8145 (CE)4 1/2位数台式数字万用表GDM-8135 (CE)3 1/2位数台式数字万用表GDM-80343 1/2位数台式数字万用表档位500mV,5V,50V,500V,1200V共5档准确度+(0.03%读值+4位数)、1200V档+(0.03%读值+9位数)输入阻抗10MΩ交流电压绝对有效值(交流或交流加直流绝对有效值)档位500mV,5V,50V,500V,1000V共5档准确度500mV~50V共3档20Hz~45Hz：+(1%读值+15位数)45Hz~2kHz：+(0.5%读值+15位数)2kHz~10kHz：+(1%读值+15位数)10kHz~20kHz：+(2%读值+30位数)20kHz~50kHz：+(5%读值+30位数)500V、1000V共2档45Hz~1kHz：+(0.5%读值+15位数)