The characteristics of：

1, voltage: 75V/150V/300V/600 automatic range, continuous maximum allowed input 700V, precision for ± (0.4% reading +0.1% range +1 word) maximum reading 9999.

2. Current: 0.5a /2A/8A/20A automatic range, continuous maximum allowable input 22A, accuracy is (0.4% reading +0.1% range +1 word) maximum reading 9999.

3, input impedance, voltage > 1 M Ω, current < 0.02 Ω.

4. Frequency range: the base frequency of 45Hz~65H is ± (0.004+0.001/ reading +1 word), and the maximum reading is 1.000.

5. Power: 20A×600V precision is ± (0.4% reading +0.1% range +1 word), the maximum reading is 9999.

6. Display refresh rate: about 3 times per second.

7. Power supply: 220V±10%, frequency: 50/60hz.

8. Overall size: 270mm×220mm×90mm.