The Klein Tools ET310 Circuit Breaker Finder with Integrated GFCI Outlet Tester is a digital circuit breaker finder used to locate the correct circuit breaker in a panel to which an electrical outlet or fixture is connected. The Transmitter is connected to the electrical outlet or fixture in the circuit while the receiver is used to scan the breakers in the circuit panel. The Transmitter also features a GFCI outlet tester. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn’t just the name of our company, it’s also our family name. And since we’re an American company that’s family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn’t just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.
ACCURATE CIRCUIT BREAKER IDENTIFICATION: Quickly locate the correct breaker with precision using our circuit breaker finder, ensuring efficient electrical troubleshooting
TWO-PART SYSTEM: Consists of a Transmitter connected to the outlet/fixture and a Receiver to scan the panel, allowing for easy and accurate breaker identification
CLEAR INDICATIONS: The Receiver provides visual and audible cues when the correct breaker is found, ensuring a hassle-free locating process
WIDE COMPATIBILITY: Operates on 90-120V AC circuits, making it suitable for a variety of electrical systems and installations
BUILT-IN GFCI TESTER: The Transmitter includes a GFCI outlet tester, enabling you to inspect wiring conditions and test GFCI devices for added safety
CONVENIENT STORAGE: The Transmitter docks in the Receiver, offering a compact storage solution, keeping the components together when not in use
UNIVERSAL CONNECTIVITY: The Transmitter features a three-pin plug for easy connection to North-American-style grounded electrical outlets, ensuring seamless compatibility
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Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester
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marktrimarc –
Trusted Klein Tools Brand, Easy To Use
I started using circuit breaker finders about ten years ago. I was very happy to discover that there was such a thing.At the time, I bought the cheapest one I could find. It worked Ok, but still required some trial and error to find the circuit I needed to turn off.When I saw that Klein Tools made a circuit breaker finder, I thought I’d try it because I’ve always been impressed with the quality of Klein electrical tools. My neighbor is a Master Electrician and he uses many Klein brand tools.Compared to my old, cheap device, the Klein Tools instrument has better sensitivity and accuracy. The visual notification is plenty bright for dark rooms where the panel box can be found. This unit allows me to quickly and easily locate circuit breakers. I don’t always find them on the first try, but it sure beats pure trial and error.I already had a cheap dedicated voltage tester, but the transmitter with this Klein set also detects voltage and proper wiring of outlets!Best of all, this set fit perfectly into the hard case I already had. Also, Amazon sells good hard cases that will fit this device well.
Linda Tax –
Effective tool
Works well for mapping and testing outlets on the circuit breaker board.
Kris Garner –
A must-have for unlabeled breaker panels!
Our builder left the breaker panel completely unlabeled, making simple repairs a nightmare. This Klein Tools ET310 worked perfectly to map out the whole house. The receiver is very accurate—it might beep on a few breakers during the first pass, but once it “learns” the panel on the second pass, it points directly to the right one every time. It saved me hours of running up and down the stairs or yelling across the house “Did that turn it off?”
PJP –
Works well.
I spent almost an hour trying to decipher the scrawl on the label in the breaker box to determine which might be the one to the socket that I wanted to replace. Almost all of them said:sockets/lightsThanks. So much … I then spent half an hour flipping off likely candidates. Nope.Came to Amazon and spent some time trying to decide between this Klein device or the similar Fluke one.This seemed to have a lower proportion of bad reviews, and I do have other Klein tools which I am relatively happy with. Ordered it for same day delivery.Of course, it was “end of day” delivery, but still … plugged in the transmitter and had the breaker located five minutes later.Next morning I swapped the faulty socket. I verified the power was off with the included voltage detector, after testing it against several sockets and light switches to be sure it worked ok.The only reason I have knocked off one star from an otherise five star review if for the cheap and nasty plastic these are made of. Plastic is ok, but this is the sort of plastic you associate with free gifts in packets of cornflakes.And these were anything but cheap.
Bartek –
Professional grade and a total time-saver!
This Klein Tools 80064 Circuit Breaker Kit is an absolute essential for anyone doing electrical work, from simple DIY projects to more complex troubleshooting. The digital circuit breaker finder is incredibly accurate—it eliminates the “guess and check” method of running back and forth to the panel. The non-contact voltage tester is a must-have for safety, providing clear visual and audible alerts, and the included zipper bag keeps everything organized and protected in my tool bag. It’s a high-quality, reliable set that pays for itself in the time and frustration it saves!
FMS –
Great electrical tools
Klein tools work very well for home repairs. Have used these tools several times and have saved money on simple electrical repairs
Joni –
Excellent Tracking Fuse Tool
Works extremely well for tracing down the fuse to the room. Easy to set up and straight forward function. The voltage appears to work with any standard home panel but I had a few instances where I got a few false alarms. The unit requires running up and down all the fuses twice to pin point an exact near identical signal match. I would say it is durable and the design is modern. Can fit in any work bag or pocket.
Charles S. –
5 stars
Excellent tool as are all Klein products. Denitely get the other configuration with the case and add ons. Works great every time.
Ali A. –
هذا لاينفع لنظام الكهرباء ٢٢٠ فولت
Justin hansen –
Awesome
Fab –
Ce détecteur de disjoncteur est un outil extrêmement pratique qui fait gagner un temps précieux lors de travaux électriques. Il permet de localiser rapidement et avec précision le disjoncteur correspondant à une prise électrique ou à un luminaire, sans avoir à couper les circuits un à un.Le système est composé de deux parties bien pensées : un émetteur qui se branche directement sur la prise ou le luminaire à identifier, et un récepteur qui sert à balayer le panneau électrique. Dès que le bon disjoncteur est trouvé, le récepteur émet des signaux visuels et sonores clairs, ce qui élimine toute confusion.Compatible avec les circuits de 90 à 120 V CA, l’émetteur intègre également un testeur de prise GFCI. Cela permet de vérifier l’état du câblage de la prise et de tester le bon fonctionnement des dispositifs GFCI, un vrai plus pour la sécurité. La prise à trois broches est parfaitement adaptée aux standards nord-américains.Autre point appréciable : l’émetteur se range directement dans le récepteur, ce qui rend l’ensemble compact et facile à transporter ou à ranger dans une boîte à outils.Un excellent outil, autant pour les bricoleurs que pour les professionnels, simple à utiliser, précis et très efficace. Un indispensable pour toute intervention sur un panneau électrique.
Juan Juan Juanes –
Lo h estado usando y funciona bien aunque a unos breakers tienes que revisar el cable , pero funciona bien, no he probado del botón directo para reset de breakers
Bernd Nurnberger –
Curious from the negative reviews, I thought as an electrical engineer, I would get it to work. Well, scanning the breaker board on second pass, it showed the wrong breaker. The microwave which is the only device on that circuit. The tester was plugged in another outlet. So I switched the breaker off, it still showed that breaker. Reset the scanner, learned the board all over, same wrong circuit. Or rather the middle of the breaker board. Then I read in the manual to unplug all devices from the circuit being tested. If I need to do that, this tester saves no time.Fortunately, some reviewers shared how they got it to work. Remove the breaker board cover and scan the wires. Bingo! Found the circuit the gas boiler is on. Without the need to unplug and reset the clocks in each room controller. 4 stars after all.