caniknow Posted June 18, 2021 Report Share Posted June 18, 2021 I took out a Klein NCVT3 tester out of packaging and was trying to test against electrical outlets, I get beep when getting the tester against a wall or a wooden table, but against the plastic casing that is by the side of switch i do not get a warning or a beep? Is there any calibration or something that needs to be done on this one? This is NCVT3 tester and receptacle tester combo that is available in home depot. Quote Link to comment Share on other sites More sharing options...
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