This has also become one of my favorite tools along with my 7.2 volt dewalt screwdriver. I use mine on trouble-shooting and tracing loose neutral wires mostly. Saves undoing lots of splices in old buildings. I always confirm with a DMM when I think I have located the problem. I will second the damp false off with "66" though. Got bit pretty good one day kneeling in the wet grass. Since then if I have to touch it I use a back up.
Wirewiz