![444.](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Specifications:
Test accuracy: ± 10% power supply: 9 V, 6F22 manganese battery, measuring range: 0 ~ ± 1.49 kV (low range), ± 1.0 kV ~ ± 20.00 kV (high range) Accuracy: ± 0.1 kV (low range), ± 1.5 kV (high range) Measuring distance: 25 mm ± 0.5 mm. Ion compensation: 0 ~ ± 200 V LCD renewal rate: 5 times/s. Response time: 1s Working environment: 10 ~ 40 ℃, relative humidity: 0 ~ 60% R.