YES, the metallic spikes (or probes) must make very good contact with the ground. If the ground is very dry, or if you are working over asphalt or concrete, it is recommended to wet the ground around the spikes with some water in order to increase the ground’s conductivity and get more accurate readings with the A-Frame.
Do the spikes of the A-Frame need to touch the ground?
Viewed 24 Times Date : 06.09.2017
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