Klein Tools ET450 Advanced Underground Circuit Breaker Finder and Wire Tracer Kit for Energized and Non-Energized Breakers, Fuses, and Wires

This is a way cool tool for chasing electrical issues. This actually replaces several tools I used to have to gather up before working on electrical issues. The two features I use the most are the ability to tone on live and dead circuits and the proximity voltage detector. Highly recommend for troubleshooting electical issues.

So far product works fantastic, really like the sensitivity settings as finding branch circuit breakers has been a breeze. The receiver has a back lit screen which makes it easy to see in the dark. Super simple to use and is accurate every single time. I used this to replace my ideal one as the latter’s sensitivity was either too much or too little. Only thing I do miss from the ideal is the continuity tester and that it does 600V compared to the Klein. This unit is less expensive so I’m fine with those features not being included.

I bought this tracer to upgrade from the Greenlee that I've been using. This tracer takes a learning curve to get used to, but once you get the hang of it, the thing is fantastic to use. Here's what I love about it. First, it has a digital readout on the reciever that shows the intensity of the tracer signal that you're picking up, allowing you to really zero in on the breaker or wire that you're seeking. You can also increase or decrease the sensitivity of the reciever so that you can get into range of the signal and then close in on the precise location of the signal. Secondly, this thing can trace underground circuits! I've only tried a depth of 2' so far but it worked great. Another cool feature is the 20' accessory lead that can be used to connect to a separate grounding source for more accurate signal output. It's also durable and has a rugged carrying case. I highly recommend this product. This is the best tracer at this reasonable price!

Worked great - used it to trace a hot outlet back to the breaker panel, and had to turn the sensitivity down on the probe to narrow down the exact breaker, so it had more than enough signal on a short (maybe 75 foot) run in conduit. Tried it on unpowered data wires to label the other end of the correct cable. Worked great so far, but haven't tried using to trace any power wiring underground yet. Very nice to have one tool that works for both finding un-powered data/signal/phone pairs, as well as plugging it right into powered outlets to find a breaker before even starting. The non-contact voltage sensing in the probe seems to work about as sensitive as my much smaller Fluke Volt-Alert pens do, but I've only tested this Klein probe on 120 VAC, not any lower voltage DC cabling yet where the Fluke pens still work. Very nice case to keep it all together and un-damaged in the tool bag or box, and I really like that they provided specific holders to put the batteries into, so you don't have to store them in the device or leave them rolling around the box, so they won't run down and leak if this doesn't get put into use for some period of time.I didn't need a lot of time in the manual, just checking over features and basic usage, and the buttons and screen display are fairly intuitive. You won't need to refer to the manual much again, but it's nice that it has a place inside the box for other users. If you're tracing underground wires, you only need to pay attention to finding a neutral or ground wire that's on a different circuit somewhere else before starting. If not, the signal path going both directions on a pair that are right next to each other are equal and opposite, and tend to cancel the signal strength enough that you may not find it. No problem with simple breaker locations though, and you can use the provided adapter to just plug the transmitter right into a standard outlet.On the down side, I really dislike that they required a screwdriver to open the battery covers. That's just lazy design, and more prone to breakage, stripping, or screw loss than a decent spring clip just built right into the battery cover. And they made a VERY strange decision on the larger transmit unit, where all but two of the batteries snap into the removable battery holder that you screw back down onto the device - but then 2 more batteries need to be snapped into slots back inside the unit before you put the battery cover back on. Very uncommon, and easily missed by someone who will come back and tell you it doesn't work, and you need to remember to ask if they had 2 extra batteries left over after putting them all in. If so, reopen the transmitter, and look for the extra 2 battery slots NOT near any of the rest of the batteries.All in all, a decent unit for the price, and it does double duty on hot and unpowered wires. I've paid more for just single use units. Definitely something worth adding to your tool set, that you'll find many uses for.

I was told this thing would help me trace out power wires … and it did! This is a complete kit to get the job done! It was easy to learn and had all the adapters I needed to do the job. It was a bit of money but well worth it.

Works extremely well at finding lost wires, however it isn't perfect, sometimes picking up stray signals. Still, couldn't have found my problem without it!

Great purchase. I used it to track broken irrigation wires, the power, and common wire were broken in several places after my lawn client had a pool built. It worked perfectly even with the wires being +12” under ground. I found the break in the wires within 5 minutes. Would definitely buy again or recommend if you need to trace irrigation wires, broken or unbroken. The carrying case is also nice and durable, and it came with batteries for both devices.

Fantastic circuit tracer, I haven't had the chance to use it to its full extent but I have found some crazy wiring and damage while troubleshooting so it's without a doubt worth the money!