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KLEIN TOOLS

Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters and Case

  • Based on 315 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Feb 19 – Feb 20
Order within 18 hours and 6 minutes
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Features

  • ACCURATE CIRCUIT BREAKER IDENTIFICATION: Quickly locate the correct breaker with precision using the transmitter and receiver of the circuit breaker finder, ensuring efficient electrical troubleshooting
  • CLEAR INDICATIONS: The Receiver provides visual and audible cues when the correct breaker is found, ensuring a hassle-free locating process on 90-120V AC circuits
  • BUILT-IN GFCI TESTER: The Transmitter includes a GFCI outlet tester, enabling you to inspect wiring conditions and test GFCI devices for added safety
  • LIGHT SOCKET AND GROUNDING ADAPTERS: Easily find the correct circuit for a lighting fixture with the light socket adapter, and use the included 3-prong to 2-prong grounding adapter for added convenience
  • ALLIGATOR CLIP ADAPTER: Enables testing on bare wires, providing versatile usage options
  • PREMIUM CARRY CASE: Dense foam organizes and protects all components in a premium hard carrying case
  • CONVENIENT KIT: Includes ET310 transmitter and receiver, light socket adapter, 3-prong to 2-prong adapter, alligator clips adapter, user manual, 9V battery for receiver, and a premium carrying case with foam insert

Description

The Circuit Breaker Finder Kit includes components for various 90-120V AC circuit diagnostics. The receiver locates the correct breaker for outlets or fixtures, and the transmitter can connect to other fixtures using the included accessories. Use the transmitter with the alligator clip adapter for bare wires and the light socket adapter to locate the correct circuits. The transmitter also tests GFCI outlets. Components are stored in a premium carrying case with a foam insert for organization.

Brand: KLEIN TOOLS


Power Source: Corded Electric


Style: Circuit Breaker Finder Kits


Color: Orange


Item dimensions L x W x H: 10.96 x 2.17 x 1.41 inches


Brand: ‎KLEIN TOOLS


Power Source: ‎Corded Electric


Style: ‎Circuit Breaker Finder Kits


Color: ‎Orange


Item dimensions L x W x H: ‎10.96 x 2.17 x 1.41 inches


UPC: ‎092644694929


Manufacturer: ‎Klein Tools


Part Number: ‎ET310KIT


Item Weight: ‎1.23 pounds


Product Dimensions: ‎10.96 x 2.17 x 1.41 inches


Country of Origin: ‎China


Item model number: ‎ET310KIT


Batteries: ‎1 9V batteries required. (included)


Item Package Quantity: ‎1


Included Components: ‎Circuit Breaker Finder Kit


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Date First Available: December 23, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Feb 19 – Feb 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Worked well, worth the price
Well designed and identified circuit(s) as I needed. One challenge I encountered was the alligator clips are designed for clamping on to bare wires and I needed to identify a switch circuit. The clips would not stay attached to the hot/neutral terminals. It was necessary to have someone hold the clips on the terminals while another person scanned the breakers. That made it a two man job. ... show more
Reviewed in the United States on June 19, 2025 by Gary W
    • Actually works and works well with bonus attachments
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! ... show more
Reviewed in the United States on June 20, 2025 by Marshal
    • Good Product
As advertised. Well-made product and works well. Easy to identify circuits and accurately label your fuse box. Fast shipping.
Reviewed in the United States on June 18, 2025 by RP in Hudson
    • Easy to use and love
Wish I had this years ago. Works like a champ and saves a ton of steps chasing down circuits
Reviewed in the United States on July 15, 2025 by jim blahnik
    • Quality assurance
Great set of diagnostic tools!
Reviewed in the United States on June 14, 2025 by Jim Rod
    • Great tool for finding breakers
Great little kit. Had this without the case and went on sale for cheaper with the case shortly after. Returned the one without and now have a great little case for the tool.
Reviewed in the United States on July 16, 2025 by Sean Peterson
    • Well worth the price
Arrived quickly and in good condition. This is an excellent brand name and does a very good job. Especially convenient because includes a bulb insert or use lines that have no receptacles. I have used.Klein products for years and plan on using it for many years to come.
Reviewed in the United States on June 16, 2025 by John Holyak
    • Great tool
Great tool. Saved me a lot of time running around trying to find the right circuit. Now if I could only remember where I left it.
Reviewed in the United States on June 5, 2025 by JFH

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