Product Features:

1. The measured power frequency has good equivalence. The test current waveform is a sine wave with a frequency
    difference of only 5 Hz from the power frequency. Two frequencies of 45 Hz and 55 Hz are used for measurement.

2. Strong anti-interference ability. The grounding resistance tester of the earth network adopts the different frequency
    method for measurement, and cooperates with modern software and hardware filtering technology, so that the instrument
    has high anti-interference performance, and the test data is stable and reliable.

3. High precision. The basic error is only 0.005Ω, which can be used to measure the ground network with a small grounding impedance.

4. Powerful. It can measure current pile, voltage pile, grounding resistance, step voltage and contact voltage.

5. Simple operation. All Chinese menu operation directly displays the measurement results.

6. The wiring labor is small, and no large current wire is needed.