how to use digital earth ground resistance tester dy4100

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How many ohms reading is better as proper earthing?

ransfordkwakuyeboah
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Nice video, do You recomend this brand? Is it still working?

pablogiordano
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Hello, in testing ground rod of telco, do we need to detach the connection/messenger connected to the ground rod before testing? Thank you for reply

chrisbernardtanon