| Key Specifications | 34420A |
| Digits of resolution | 7-1/2 |
| Basic DCV Accuracy | 30ppm |
| Max reading rate | 2500 rdgs/s |
| Measurement | |
| DCV | 1mV to 100V |
| ACV | 1mV to 100V |
| Resistance | 1ohm to 1M ohm |
| Temperature | RTD, thermistor, thermcouple |
| IO interface | USB std, (GPIB, opt) |