| Test Range Electrostatic bit test mode: 0-20kV Ion balance mode: 0-200kV |
| Test distance: 25mm±0.5mm |
| Sensor test response: <1s |
| LCD screen update frequency: 5times/s |
| Measurement accuracy: ±10% |
| Power supply: 9V battery |
| Operating temperature: 10°-40° |
| Working humidity: 0-60% |
