See ,a ms means micro siemen , unit of measure of conductivity , 1 ms equals 1,000,000 ohms per sq cm . So if one has a electrical multi meter can do it . Place.probs at 1cm from eachother . I tried it but if you move even a mm you fuck your reading up and can end up destroying a crop . I have a pinched nerv in my left arm and have a twitch so thats out of the questions
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