Ground Resistance Tester

GR-II earth grid grounding resistance tester

GR-II earth grid grounding resistance tester

Scope of application

It is suitable for testing the power frequency ground impedance and other power frequency characteristic parameters of various grounding devices and soil electrical

Performance characteristics

1. It adopts different frequency method to measure, which has high anti-interference performance, and the test data is stable and reliable.

2. The basic error is only 0.005Ω, which can be used to measure large ground grids with small ground impedance;

3. It can measure the grounding resistance of current piles, voltage piles, grounding resistance, on-resistance, and soil resistivity of ground grids;

4. Full Chinese menu operation, direct display of measurement results.

Technical index

Impedance measurement range




Measurement error


Test current waveform

Sine wave

Test current frequency

45, 50, 55, 60, 65Hz single frequency

45/55Hz, 55/65Hz, 47.5/52.5Hz automatic double frequency conversion

Output current


Maximum output voltage


Measuring line requirements

Current wire copper core cross-sectional area ≥ 1.5mm2

Voltage line copper core cross-sectional area ≥1.0mm2


Contact us

No. 255, Shanpu Road, Hedong Industrial Park, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province



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