Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411

This is honestly a fantastic tool, and I couldn’t be more impressed with its performance. One of the standout moments for me was when I was trying to locate an unknown breaker in a breaker panel—something that can be a real hassle, especially if you don't have the right tools. This tool made the process so much quicker and easier. What would’ve been a guessing game or a time-consuming trial-and-error process turned into something almost effortless. Not only did it help me find the correct breaker without any headache, but it also made me look like I actually knew what I was doing—always a plus when you're trying to impress friends, family, or clients! I’ve only scratched the surface in terms of using all the tool’s functions, but even just using it for this one task, it paid for itself. Honestly, after that experience, I knew I’d gotten my money’s worth. The fact that it saved me so much time and frustration made it a solid investment right from the get-go. It’s one of those tools that you don’t realize how much you need until you use it—and then you wonder how you ever managed without it. While I’d highly recommend this tool to DIYers—especially if you’re someone who enjoys working on electrical projects or home repairs—it’s definitely versatile enough to be useful for professionals as well. Whether you’re just dabbling in home improvement or you’re a seasoned expert, this tool offers enough reliability and functionality to make it a handy addition to anyone’s toolbox. In short, if you’re on the fence about it, don’t be. Even if you just need it for a single task (like I did), you’ll quickly see that it’s worth the investment. Plus, it’ll definitely make you look a lot more competent than you might feel in the moment—always a nice bonus!

I picked this up primarily for projects around the house like replacing outlets and doing minor electrical work, and it has performed exactly as expected. The breaker finder makes it quick and easy to identify the correct circuit without the usual trial and error of flipping breakers back and forth. It consistently detected the right breaker during my testing, which saves a lot of time and frustration. One unexpected bonus was the included bulb socket to outlet adapter. I actually used it while traveling when a condo balcony didn’t have an accessible outlet, and it ended up being incredibly useful. That kind of versatility makes this kit more valuable than it might seem at first glance. Build quality is what I expect from Klein — solid, durable, and dependable. Klein has always been one of my go-to brands for electrical tools, and this kit reinforces that reputation. Everything feels well made and designed for real-world use rather than occasional DIY novelty. The tool is straightforward to operate with no learning curve, and it’s compact enough that I’ve added it to my everyday carry tool kit for home maintenance. Honestly, I don’t have any negatives to call out. If you do electrical work around the home even occasionally, this is one of those tools that quickly pays for itself in convenience.

Moved into a "new" home and needed to figure out the circuit breaker assignments. This set solved the mystery! It even helped me unravel circuit breakers for a bathroom that had outlets assigned to two different breakers. The GFFCI tester is a great extra. Easy to use.

The important consideration here is that you MUST run the device slowly over all your breakers so it "learns" them, do not pay attention to any beeps you hear while doing this first pass. This kit worked very well for me after moving to the new house; the breaker panel was not labeled as well as it could have been and this was a real time-saver, especially the light socket adapter. I found it to be accurate, easy to use, and would recommend it over other kits I have used in the past for mapping outlets.

I have always liked Klein electric tool, because they just work. Had a heck of a time locating a circuit breaker, my house has a huge panel box and 3 sub boxes. At first, I decided to save some money and get a different less expensive breaker finder. To be completely honest, I thought it was Klein because it was the same color, which is on me. That device did not work, keep showing false positives on the same 3 breakers no matter what outlet I had the tester/transponder plugged into. Even when I knew exactly what breaker it was, the other devices failed to recognize it. Tried and tried over and over with the same false positive results. So, I decided to spend the extra money, which in hindsight was only another $15, and purchase this set. Bonus, this set came with a lot more plus the case for another $5, which is well worth it. I could now not only test outlets to make more they were wired correctly, but also test and trace breakers with outlets, two pongs, light socket and live exposed wires. Very nice. To test the breaker finder functionality, I plugged the tester/transmitter into a random outlet and confirmed it was wired correctly, which it was. Went downstairs, turned on the breaker finder, "the wand", on my way because I read to do this away from the panel box. Once I got to the box, I ran the wand down the breakers- top to bottom- left to right- first one row and then the other, ignoring the beeping and lights. This apparently learns the breakers, gets an ideal of what's up. Started the process over again and the wand went berserk on the very last breaker- short increased beeping with a red light- over a double 15-amp breaker. I did not think this was the correct breaker at all because it was a different breaker than the other outlets in the room that I knew of. Said to myself, here we go again, another defective unit that doesn't work, thanks Klein, had high hopes for you, you never let me down before. Held the wand away, reset it and ran the test again, showed the exact same breaker, the very last one in the box, double 15 amp and it even told me it was the top 15-amp switch, not the bottom 15. I reluctantly flipped that breaker off, more out of spite than anything and went upstairs to see what clocks I need to reset and where. MUCH to my surprise, the tester plugged into the outlet was off, no "correct wiring" lights or anything. Humm, must have turned itself off, which didn't make sense since it gets it power from the outlet, so I took it out and plugged it back in and ALAS no power! That was the exact correct breaker! I should have never doubted my buddy Klein!

High-quality product that is easy to use. It's a great addition to any toolbox. Klein Tools are my go-to for all things electrical. I've purchased several tools from this manufacturer for myself and family members.

Muy útil en instalación eléctrica

回路がしっかり分かりました(｀･ω･')ゞ

Equipo de calidad, profesional y funcional 100% original 👨🏽‍🔧

No issues. Works as expected.