| Model | LW-9901 |
| Voltage range | 150V/300V auto range, allow max. Input ≥ 350V |
| Current range | 2A/20A auto range, allow max. input≥22A |
| Input impedance | voltage > 1MΩ, current < 0.02A |
| Frequency range | base frequency 25Hz to 2 kHz |
| Power factor | 0 to ±1.000 |
| Power | 20A*300V max. readout 99999 |
| Display refresh rate | about 3 times/S |
| Power supply | AC220V±10% 50Hz |
| Dimensions | 270*225*90mm |
| Weight | 2.5kg |
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