Natural EM meter is frequently seen used by well respected paranormal researchers Loyd Auerbach.;Meter will not go off at all for electromagnetic fields from electronic equipments, AC fields.;It will alert you of extremely weak static fields, these are referred to as DC fields.;Choose between electric & magnetic, measure changes in electric or magnetic DC fields @ same time;Our reccommendation is for paranormal reaserach is to keep the setting at Electrical.
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