I know, its a plumbing forum, but guessing plumbers would know the answer to my question.
I'm thinking of installing a wifi switch to control an outside light, one that uses an app. The switch says there must be a 'neutral' wire. The house was built in 1993 to code and has a half dozen 'ground fault' outlets. I read that an indication of wiring having a neutral line is a voltage difference of about 1 volt between the ground plug and the 'long' outlet plug, which does mine does. Is there other ways of determining if a neutral line is part of the house circuit?
I'm thinking of installing a wifi switch to control an outside light, one that uses an app. The switch says there must be a 'neutral' wire. The house was built in 1993 to code and has a half dozen 'ground fault' outlets. I read that an indication of wiring having a neutral line is a voltage difference of about 1 volt between the ground plug and the 'long' outlet plug, which does mine does. Is there other ways of determining if a neutral line is part of the house circuit?