Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester With Integrated GFCI Outlet Tester

Only works for 110 Volts

You can use this tester to find any outlet, light and even bare wires to discover what breaker they are on. The accessories will help you with any 2 prong (old) outlets, light sockets and even bare wires.

Klein makes great electrical tools that I have a small necessary collection of. Unfortunately this is the only one that didn’t live up to the name. Maybe I got a lemon but this is not the tool that you want giving you misinformation while working with live circuits!

Muy buen producto

Accurate most of he time

I have a much cheaper ideal circuit breaker finder which works great, but liked how the gfci tester fits together with the breaker finder so figured I’d give it a try. Unfortunately it does not work at all to find the correct breaker… pretty disappointed since this product has fantastic reviews

Use it all the time works well

I finally mapped my box and outlets.

It didn’t fail to find the breaker once. Does what it is supposed to do. Plus it comes with a GFCI outlet tester. The materials seem to be of high quality, better than the ET300 at least.

This tool is so useful. Especially if you dont have an accurate circuit map in your breaker panel. Klein also sells a kit that works with this to also circuit check lights and live wires. The outlet checker is awesome as well.