Specification
| Model | CPM-74 |
| Measurement Range | ±1000V |
| Measurement Accuracy | ±1V |
| Operating Environment | 溫度0~40°C,相對濕度10~60% |
| Display | Alphanumeric display 100×24mm |
| Plate | 150×150mm |
| Dimension | 152×152×152mm |
| Weight | 1.5kg |
| Power supply | AC 230V 50Hz / DC 12V 750mA |
| Battery | 7.2V 1300mAh, Last approximately 4 hours for continuous operation when battery was fully charged |




