Klein Tools 80077 Voltage Tester Kit with Electronic AC/DC Voltage Tester, GFCI Outlet Tester and Non-Contact Voltage Tester Pen, 3-Piece, Green

Good tool for testing power outlet polarity. Before and after repairs. And after replacing or swapping out components.

Works.

...who works on electrical receptacles in a residential setting. This product is designed for GFCI receptacles, but it can be used on any 3 conductor socket. I am in the process of replacing all the 60-year old receptacles in my house, and this tester has a permanent home in my tool bag. Well worth the money!

Works really good. Helped me figure out a switch that I couldn’t find which outlet it controlled.

Muy útiles en el trabajo

Came as drescribed!!!

Without question - every household should have one of these.

You already know its great. I already know its great. So what are we doing here? That panel isnt going to install itself.

Glad I got it. You can check plug in in a flash.

Works great. Good quality and cheap. Love it.