Refinishing my basement. Been a 5+ year project, and I'm forgetting things. I have a white AC power wire in the ceiling, but I can't find where it goes or what powers it (it's not powered currently).
Is there a tool, similar to the kind you can use for Ethernet, Coax...etc, where I can clamp something onto it, and then use a gadget on various other wires to find out which is the wire in question?
Obviously I would just follow the physical wire if I could, but a good length of it goes under/behind drywall.