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

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.

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.

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.

This is a great tool!! intuitive setup and use. sensitivity adjustments work well for determining general direction and pinpointing location. the only thing that is different is that some on the batteries in the transmitter are mounted in the case and some are in the cover, which is less than obvious. read the instruction completely to determine how many batteries are needed.

This is well built, durable and worth every penny. Connections are solid and well thought out. It is a Klein so I expected it to be good BUT, for the price point, better then I expected.Attached pictures are of a valve, you really have to look close, that was buried under 12 inches of rock and 18 inches of very compacted soil root and rock. The valve was well over 500 ft away from the controller. I didnt walk right to it, took a lot of effort but found it. Valve is over 25 years old and the person who did the landscape needs a good talking too!!!!

This tool is as good as the user. The circuit breaker function is relatively easy to master, however the wire tracing function has a learning curve, so reading and understanding the instructions will avoid a lot of frustration and go a long way toward mastering this tool. The ET450 enabled me to complete my task, with a fair amount of heedfulness. That being said, the big plus is the price. Other systems can cost as much as 3 to 5 times more than the ET450. Only four stars because it's not what I would call plug and play. As with all wire tracers that I've used, as mentioned previously there is a learning curve.

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.

Simple to use and works outstanding, paid for itself the very first time I used it. Every Electrical Contractor should have one of these.