Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit,Black

found two broken wires on a 2020 Western star within two minutes. in shop time, it would have been min 3 hours labor.

I have used it to trace electric wire to and from the breaker box, as well as automotive wiring. I have also used it to trace ethernet and phone line. I haven't had any issues and it is easy to use. The tone is fairly loud or you can use headphones. The continuity check lights up and works perfectly. Makes tracing wires easy.

So I bought this to trace a faulty lead back to my ECU, The product looks very robust in the picture but turned out to be regular flimsy plastic. Getting the battery in the probe was a particular nightmare as the fitting is too tight and the leads too short and not having the dexterity of a concert pianist or surgeon I was lucky not to brake the thing before even using it.I followed what little instructions there are but after an hours worth of trying could not get the thing to trace a cable, it just kept ringing wherever it happened to be pointing, you could point this thing at a bucket of blancmange an it would ring indicating a cable.What really annoyed me was that I thought I'd purchased one of the better quality ones but the lesson here is that, just because it's yellow does not mean Dewalt quality.I don't know if I can send it back as I've tried using it but it certainly didn't do what it said on the tin.

I had an electrical outlet go "dead" in my bathroom. I checked breakers, connections, etc with no luck. It had worked previously...very frustrating! I bought the Extech tone generator and amplifier probe to trace the line through the house so I could get to the bottom of the problem. I threw the breaker, clamped the alligator clips on as instructed, turned the tone generator on, and EASILY traced the signal from my bathroom, through my upstairs bedroom, into a closet, down a set of stairs, into the utility room, and finally.....into a small bathroom that I never use that had a....GCFI outlet that tripped. Reset pressed and boom...power back on. The unit gave a clear signal through walls, ceilings, and paneling. I'm VERY happy with this product. The build and carry case are such that it will last me a lifetime.

Poor quality It’s use the best is not good at all