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

Where have you been all my life? I’ve spent countless hours over the years resetting clocks, yelling “is it off now”, and waiting for cable boxes to reboot. Had I known about this, I’m sure I could have learned a spare language or how to play guitar with all the extra hours. Seriously, works like a dream. Pop the transmitter in an outlet or a socket with a standard socket to plug adapter, head to your circuit box, and be amazed at one-flick electrical work for the rest of your life.

Used this to find a circuit breaker at my church, works great! Easy to use, just read the directions (or watch a video). It’s very accurate.

I love the Klein Tools Circuit Finder - I am so tired of stopping what im doing, go stand in a room, and when the light goes out, scream to my husband in the garage that he finally turned off got the right circuit - because, labeling the circuit box would be just too easy!!! So if you live with someone like this - do yourself a favor and get the Klein Circuit Finder - its just one of those little things that will make marriage easier!!

Its the easiest one to use just plug it in and go to the panel box and go along your breakers and it tells you which one to shut off

This tool is accurate and easy to use. I don’t have to keep adjusting the sensitivity each time I use it.

Not much to say other than its not accurate. Useless most of the time.

It takes all of 15 mins to get all the circuit breakers labeled correctly with a partner. With 15 total spaces including garage, bathrooms and hallways we knocked out 200A CB panel. Will continue to use with live wire check. Even for outside.

I needed this tester to work. Got one at my local hardware store. Defective (red light and tone came on and stayed on). Exchanged it for another. Never could get this second one to find the right circuit. Tried multiple circuits/outlets but no luck. The best it would do was to oscillate between red and green on a circuit which wasnt the right one. I followed the two pass recommended process and quite consistently didnt get a peep on the second pass. Reread the instructions for a third time just to make sure I didnt err. Nope. Just for the record Im not an electrical idiot as one review termed those who couldnt get theirs to work. So I ordered another from Amazon thinking that my local store might have had a bad batch. Nope. Behaved the same as the second one above. Sending it back to Amazon. Too bad, Klein generally makes good products.

Worked as Required and had no issues

This tool is great. What a time saver. No more flipping breakers on poorly marked boxes.