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1

Regardless of the source, you don't want to inhale it, so put a mask on - surely you have some of those after the past two years. And get the place cleaned up - there are professional "fire and water cleanup" or "restoration" services, or you and a HEPA vacuum. And a mop and bucket and a lot of rinsing. And probably replacing any carpets.....


2

Your meter is non contact voltage sensing ! It is not a non contact voltage meter see page 13 of the ideal 61737 manual. Many think that NCV means it will read the voltage, nope you need to get to meters in the 300+ range and you still need a ground plane (usually your body connected to ground) The EF is stating over 40v was sensed again see page 13 in the ...


-1

These contactless voltage tester are quite sensitive. Besides the possibility that this tool is defect, the following points could play a role if it detects voltage everywhere in a room/house: Grounding problems. F.e. multiple grounding connections instead of a star configuration with only one central connection rod. Or missing grounding of steel rebars. Or ...


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