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Circuit Finders

10 Best Circuit Finders 2025 in the United States

#1

Winner

9.9 score

Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit & RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time, Orange

14%OFF

Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit & RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time, Orange

Klein Tools

9.9 score

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The Klein Tools ET450 Circuit Breaker Finder and Wire Tracer Kit, paired with the RT390 Circuit Analyzer, offers a strong solution for anyone dealing with electrical circuits, especially electricians or DIY enthusiasts. One of its primary strengths is accuracy; it effectively traces energized or non-energized breakers, fuses, and wires, which is crucial for reliable diagnostics. The adjustable sensitivity levels allow users to detect signals through various materials like drywall and concrete, enhancing its range and versatility in different environments. Users will appreciate the audible and visual indicators that help in understanding signal strength, making it user-friendly even for those unfamiliar with such tools.

Rating
9.9
Chosen by1,411
Accuracy
Ease of Use
Additional Features

Most important from
23 reviews

Accuracy
Highly recommended for its effectiveness in finding what breaker turns off which outlet or light.
Ease of Use
Works great and is easy to use, with a very detailed manual.
Additional Features
The tools excel at tracing wire or circuit breakers and understanding an outlet's situation.
#2
9.8 score

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

15%OFF

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

Klein Tools

9.8 score

Check price

The Klein Tools ET310 AC Circuit Breaker Finder stands out for its precise circuit breaker identification, making it an excellent tool for efficient electrical troubleshooting. This two-part system, consisting of a Transmitter and a Receiver, allows users to easily connect to an outlet/fixture and scan the panel to find the correct breaker. The device provides clear visual and audible cues when the correct breaker is located, simplifying the process for users.

Rating
9.8
Accuracy
Ease of Use
Durability

Most important from
22587 reviews

Accuracy
More accurate than other brands, making it reliable for finding circuits even in multiple grouped panels.
Ease of Use
Easy to use and makes testing and working on home wiring really simple.
Durability
Extremely useful for both DIYers and professionals, with long-lasting performance.
Additional Features
The GFCI tester function is handy and effective for checking outlets in kitchens and other areas.
#3
9.7 score

Klein Tools 80064 AC Circuit Breaker Kit with GFCI Digital Circuit Breaker Finder, Non-Contact Voltage Tester Pen and Zipper Bag, 3-Piece

Klein Tools 80064 AC Circuit Breaker Kit with GFCI Digital Circuit Breaker Finder, Non-Contact Voltage Tester Pen and Zipper Bag, 3-Piece

Klein Tools

9.7 score

Check price

The Klein Tools 80064 AC Circuit Breaker Kit offers a comprehensive solution for identifying circuit breakers, making it a solid choice for homeowners and electricians alike. With a measurement accuracy of 98%, it excels in pinpointing the correct breaker for various electrical outlets and fixtures, which is crucial when working with electrical systems. The kit's ease of use is also a highlight; the visual and audible indicators make it approachable for users who may not have extensive electrical knowledge. The non-contact voltage tester adds to its versatility, allowing users to detect voltage in various components safely.

Rating
9.7
Accuracy
Ease of Use
Additional Features

Most important from
1095 reviews

Accuracy
Accurate and efficient in tracking down circuits, even in multiple grouped panels, outperforming other brands.
Ease of Use
Extremely easy to use, making it an excellent tool for both DIYers and professionals.
Additional Features
The circuit breaker finder works like a charm, providing clear visual and audible indicators that make it hard to miss the correct breaker.

Top 10 Best Circuit Finders 2025 in the United States

#1

Winner

9.9 score

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Klein Tools

Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit & RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time, Orange

Accuracy: traces energized or non-energized breakers
Ease of Use: audible and visual indicators
Range: detect signals through various materials
Durability: depends on care during use
Additional Features: large LCD, dual fault detection

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14% OFF

Chosen by 1411 this week

#2

9.8 score

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Klein Tools

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

Accuracy: precise breaker identification
Ease of Use: simplifies process for users
Range: 90-120V AC circuits
Additional Features: GFCI tester, three-pin plug

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15% OFF
#3

9.7 score

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Klein Tools

Klein Tools 80064 AC Circuit Breaker Kit with GFCI Digital Circuit Breaker Finder, Non-Contact Voltage Tester Pen and Zipper Bag, 3-Piece

Accuracy: 98%
Ease of Use: Visual and audible indicators
Range: Good distance for detection
Durability: Durable design
Additional Features: Non-contact voltage tester, GFCI tester, bag

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#4

9.6 score

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Klein Tools

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

Accuracy: identifying the correct circuit breaker
Ease of Use: clear visual and audible signals
Range: 90-120V AC circuits
Durability: parts designed to withstand regular use
Additional Features: digital finder, GFCI tester, adapters

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#5

9.4 score

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Fluke Networks

Fluke Networks 26000900 Pro3000 Tone Generator and Probe Kit with SmartTone Technology

Accuracy: +/-0.5%
Ease of Use: Ergonomic, loudspeaker, headphone jack, push-button
Range: 16 kilometers (10 miles)
Durability: Durable and robust design
Additional Features: SmartTone, 5 tones, headphone jack

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12% OFF

Related Products

Up to 17% off

#6

9.1 score

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Klein Tools

Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet and Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 6-Piece

Accuracy: generally reliable
Ease of Use: portable and easy to use
Range: generally reliable
Durability: durable and reliable
Additional Features: GFCI testing, non-contact voltage detection

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#7

8.9 score

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Sperry Instruments

Sperry Instruments VD6505 Adjustable Non-Contact Voltage Sensor, 12-1000 V AC

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25% OFF
#8

8.6 score

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Klein Tools

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

Accuracy: Precision in identifying the correct breaker
Ease of Use: User-friendly for inexperienced users
Range: 90-120V AC circuits
Durability: Premium carrying case with foam inserts
Additional Features: GFCI tester, adapters, 9V battery included

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#9

8.3 score

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Fluke

Fluke BK120 SmartTrace Breaker Finder and Socket Tester

Ease of Use: Built-in socket tester with LEDs
Range: Dual-sensitivity NCV mode
Additional Features: Breaker finder, voltage detector, LED flashlight

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6% OFF
#10

8.0 score

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Klein Tools

Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time

Accuracy: detects common wiring issues
Ease of Use: user-friendly, auto power-off
Additional Features: large LCD, load testing, detachable cord

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13% OFF
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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Buying Guide for the Best Circuit Finders

Choosing the right circuit finder can make your electrical work much easier and safer. A circuit finder helps you identify the correct circuit breaker for a particular outlet or fixture, which is crucial when you need to perform maintenance or repairs. To pick the best circuit finder for your needs, you should consider several key specifications. Understanding these specs will help you make an informed decision and ensure that the tool you choose is well-suited to your specific requirements.
AccuracyAccuracy refers to how precisely the circuit finder can identify the correct circuit breaker. This is important because higher accuracy means less time spent double-checking and more confidence in your work. Circuit finders with higher accuracy are generally more reliable and can save you from potential mistakes. If you are a professional electrician or frequently work with complex electrical systems, you should opt for a circuit finder with high accuracy. For occasional home use, a standard level of accuracy may suffice.
Ease of UseEase of use encompasses how user-friendly the circuit finder is, including its design, interface, and any additional features that simplify operation. This is important because a tool that is easy to use will save you time and reduce frustration. Look for circuit finders with clear instructions, intuitive controls, and features like automatic shut-off or audible alerts. If you are new to using circuit finders, prioritize models that are known for their simplicity and straightforward operation. Experienced users might prefer advanced features that offer more control and customization.
RangeThe range of a circuit finder indicates the maximum distance over which it can accurately detect a circuit. This is important for ensuring that the tool can cover the entire area you need to work in, especially in larger buildings or homes. Circuit finders with a longer range are more versatile and can be used in a wider variety of settings. If you primarily work in small residential spaces, a circuit finder with a shorter range may be sufficient. For larger commercial or industrial environments, a longer range is essential.
DurabilityDurability refers to how well the circuit finder can withstand regular use and potential rough handling. This is important because a durable tool will last longer and provide more reliable performance over time. Look for circuit finders made from high-quality materials and with good build quality. If you are a professional who uses the tool frequently, investing in a more durable model is wise. For occasional home use, a standard level of durability may be adequate.
Additional FeaturesAdditional features can include things like a built-in flashlight, a digital display, or the ability to test for other electrical issues. These features can enhance the functionality of the circuit finder and make your work easier. Consider what additional features might be useful for your specific needs. For example, a built-in flashlight can be very handy in dimly lit areas, while a digital display can provide more precise information. Think about the types of tasks you will be performing and choose a circuit finder with features that will be most beneficial to you.

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