测量功能1年内直流电压精度为8-ppm（可选4-ppm）0.05ppm直流电压传输精度***的交流电压测量系统功能高达100000个读数/秒（4.5位）Keysight3458A万用表是世界公认的高性能数字万用表标杆，具有极高的精度和高速数字转换能力，可提供校准实验室精度水平的测量和快速的测试系统吞吐量。3458A-001ExtendedMemory3458A-002Highstability4ppmperyearreference3458A-120120-voltaclineselection3458A-220220-voltaclineselection3458A-240240-voltaclineselection3458A-909选件909上架镶条和前把手套件3458A-A6JANSIZ540-1-1994Calibration3458A-H01Special1000vrmsacmaximuminputvoltage3458A-H52USAirForceNSN3458A-OGCPrecisioncalibration,intendedformetrologyuseonly11059AKelvinProbeSet11062AKelvin线夹套件1CN006A把手套件88.1毫米（高）（2U）－－两个前把手34137A***测试引线套件，适用于3458A34191A2U双凸缘套件34308A热敏电阻套件34330A30A分流器E2308A热敏电阻温度探头)