Klein Tools Circuit Breaker Finder & Tester Kit
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
 Amazon 30-day returns (in store too) | $69.98 | Aug 7, 2026, may have changed | Buy Now |
S significantservices.com | $73.46 | Aug 7, 2026, may have changed | Buy Now |
S souvela.com | $131.95 | Aug 7, 2026, may have changed | Buy Now |
M matildaco.com | $162.46 | Aug 7, 2026, may have changed | Buy Now |
O organicdreaming.com | $169.49 | Aug 7, 2026, may have changed | Buy Now |
Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.
Pros
- •Makes locating unknown breakers in a panel quick and effortless, saving significant time and frustration
- •Offers reliable and accurate performance, even in complex setups with multiple sub-panels
- •Highly versatile, working with outlets, lamp sockets, live exposed wires, and GFCI outlet testing
- •Provides both clear visual (red light) and auditory signals to confidently identify the correct circuit breaker
- •Includes useful attachments like an alligator clip adapter and light socket adapter for varied testing needs
- •Comes with a well-padded, premium carrying case with foam insert for easy organization and transport
- •Easy to use, requiring just plugging into an outlet and scanning the breaker box
- •Helpful for both DIY enthusiasts and professional electricians to enhance work accuracy and professionalism
- •Enables verification of proper wiring in outlets, improving troubleshooting efficiency
- •Has a learning mode that improves detection accuracy and reduces errors in breaker identification
Cons
- •May produce confusing or inconsistent readings if high-draw appliances (e.g., pool pumps) are running during testing
- •Some users need to turn off heavy appliances to eliminate interference and get correct circuit identification
- •Limited to 90-120V AC circuits, so not designed for higher voltage or commercial applications
- •No advanced digital display or additional features beyond basic breaker finding and outlet testing
- •May not distinguish well between circuits if breakers are poorly labeled or wired improperly without manual intervention
Bottom Line
The Klein Tools ET310KIT AC Circuit Breaker Finder and Accessory Kit is a versatile, reliable tool that cuts down the hassle and guesswork in locating breakers and testing outlets in residential or light commercial settings. Its clear signaling, practical accessories, and robust carrying case make it a solid investment for anyone tackling electrical projects. Just keep in mind it’s best used when high-draw appliances are off to avoid confusing signals. If you want something with broader voltage range or advanced digital features, you might want to explore other options, but for straightforward 90-120V AC use, this kit delivers excellent value and efficiency.
What Reviewers Are Saying
Customer Ratings
Based on 1 reviews from Amazon
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Discussion
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