Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester and Voltage Tester with Integrated GFCI Outlet Tester

4.7 4.7 out of 5 stars | 23,128 ratings

Price: 49.97

Last update: 01-04-2025


About this item

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

Product information

Technical Details


Top reviews from the United States

jjShnabadu
5.0 out of 5 stars Breaker finder is fantastic! Circuit tester, mediocre.
Reviewed in the United States on January 18, 2024
I was really wanting the breaker finder but opted for the kit because I wanted a dedicated circuit tester as a backup to my Gardner Bender wire strippers that have a built-in tester.

The breaker finder works brilliantly! It is accurate and very easy to use. Absolutely love this tool.

The circuit tester in mediocre, unfortunately. It seems to require direct contact with a wire to sense current. My old GB wire strippers can sense current from a couple of inches away and seems more reliable.

If you want a breaker finder and already have a circuit tester, I'd suggest skipping the kit and buying just the breaker finder.
KP
5.0 out of 5 stars This is a very accurate product. The manufacturing quality is great.
Reviewed in the United States on March 16, 2024
This unit works perfectly. I was able to identify the circuit breakers associated with multiple outlets throughout my house and garage. My neighbor has since borrowed it. He accomplished the same thing, and he is not usually very good at these types of things. Don't do like I did and first buy a cheap version of this tool just to send it back, because they just don't work reliably. Just spend the money on one of these and get the job done right with confidence.
Max's Eagles
5.0 out of 5 stars Worth every penny to ensure your safety!
Reviewed in the United States on February 25, 2024
Worth every penny to ensure your safety. There may be cheaper products, and do you really want to put your personal safety in the hands of cheaper product just to save a few dollars? This is where a brand you can trust is most important. This finder works great and is very, very easy to use and paid for itself in just the very first use.
Voice of Reason
4.0 out of 5 stars Breaker finder really sensitive
Reviewed in the United States on April 29, 2024
The breaker finder is great but I think a little too sensitive. Signal will flow over the wanted breaker plus the two adjacent breakers.
The current finder could be more sensitive compared to another less expensive brand.
Rating based on combo package
Middle aged male
5.0 out of 5 stars Works great
Reviewed in the United States on March 11, 2024
I used this nearly every day for two weeks to update/correct my CB panel labels. It does take a few minutes of practice to get the hang of scanning your CBs so that you get a reliable alert on the correct CB. I had to check 17 circuits, and I labeled every receptacle and switch with a CB number sticker (also purchased on Amazon). Well worth the money for me. Doing all this revealed and open ground circuit in my garage and I had an issue in my living room that I called an electrician to clean up/double check. I still have a mystery, double gang CB in my panel. It has been off since I bought the house, yet everything works. DIY recommendation, check every receptacle on your property (UPPER AND LOWER positions) with a three-light circuit tester.
Pattykay
5.0 out of 5 stars Great tool
Reviewed in the United States on April 22, 2024
Well pleased with ease of use and accuracy
newyorklyss17
5.0 out of 5 stars Easy to use
Reviewed in the United States on March 1, 2024
This was a gift for my fiance because he has learned to do all the electrical work in our house. This tool has made his life a lot easier for trying to figure out what breakers connect to what areas of the house because the electrical circuits are a mess!
metalmadman68
5.0 out of 5 stars Great product
Reviewed in the United States on April 2, 2024
This product is tops, it actually does what is intended. Finding a circuit somtimes is a challenge. Especially when the panel is not labeled, this is the tool for that. Just plug in the circuit checker and go to panel and hear the tone change when it identifies what belongs where.

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