Updated: July, 2025

Best circuit breaker testers

1

Klein Tools

9.9

Exceptional

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

Why we love it

Easy to use for DIY enthusiasts.

Includes useful adapters for versatility.

Quickly tests and identifies circuits.

Main highlights

Accurate Circuit Identification
Helps locate correct circuit breaker quickly, saving time and effort.

Versatile Residential and Commercial Use
Works on 90-120V AC circuits, ideal for various applications.

Highly Praised Time-Saving Feature
Quickly identifies breakers, reducing need for trial and error.

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2

Klein Tools

9.8

Exceptional

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

Why we love it

Quickly and accurately locates circuit breakers.

Easy to use with visual and audible indicators.

Includes a non-contact voltage tester for added safety.

Main highlights

Digital Circuit Breaker Finder Features
Includes a transmitter and receiver, visual and audible indicators, non-contact voltage tester, bright green LED, red LEDs and tone, quality polyester zipper bag.

Ideal Use Cases for Electrical Troubleshooting
Perfect for locating breakers in panels, testing GFCI outlets, detecting voltage in various electrical components, and ensuring accurate circuit identification.

Most Praised Feature from Customer Reviews
Highly accurate and easy to use, saving time and effort in identifying the correct breaker for electrical circuits.

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3

UNI-T

9.7

Exceptional

UNI-T AC Circuit Breaker Finder and Tracer Tool Kit with Electrical Integrated GFCI Outlet Tester, AC 90-120V USA Plug + Adjustable Sensitivity Beeper Indicattion+ Flashing LED Light - UT25A

Why we love it

Easy to use and adjust sensitivity.

Includes protective EVA case.

Accurate circuit identification.

Main highlights

Adjustable Sensitivity for Precision
Allows fine-tuning to pinpoint the correct circuit breaker accurately.

Ideal for DIY Home Projects
Perfect for solo DIYers needing to safely locate circuit breakers.

Highly Praised for Ease of Use
Users appreciate its simplicity and effectiveness in identifying circuits.

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4

Instrodots

9.6

Exceptional

INSTRODOTS Circuit Breaker Finder Tool with Accessories, 90-120V AC Digital Breaker Finder with Integrated GFCI Outlet Tester, Circuit Tracer with Buzzer Alarm & Color Display, Includes Carrying Case

Main highlights

VISUAL & AUDIBLE INDICATIONS - The Transmitter (outlet tester) features a large VA reverse display color screen and bright LED lights illuminate green and red for easy visual indication. The companion Receiver employs an analog bar display, visual indicators and audible alert, ensuring a hassle-free locating process. Compared to legacy testers, the upgraded CBF01 circuit tester is more intuitive than old version in the market, can better distinguish the data at a glance.

EFFORTLESS TWO-PART BREAKER IDENTIFICATION SYSTEM - This innovative digital circuit breaker locator uses signal-injection technology with a simple transmitter-receiver setup. Just plug the transmitter into any outlet or fixture, a Receiver to scan the circuit breaker panel. You'll pinpoint the correct breaker in three quick steps, no frustrating sensitivity dials to adjust, allowing for easy and accurate breaker identification.

ACCURATE CIRCUIT BREAKER IDENTIFICATION - The INSTRODOTS CBF01 circuit breaker finder can quickly and accurately locate the correct breaker on 120V electrical systems. The digital breaker finder is compatible with standard 90-120V AC 50/60Hz breaker systems, making it suitable for a variety of electrical systems and installations. It is a great electrician tool for troubleshooting electrical issues in homes, offices, factories, or during grid upgrades, etc.

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5

Dreyoo

9.5

Excellent

Dreyoo Circuit Breaker Finder Adapter Accessory Kit, Circuit Breaker Leads Tester with Clips, Light Socket, 3-2 Prong Grounding Outlet Adapter and Carrying Case Compatible with ET300 ET310

Why we love it

The Breaker Finder accessory kit helps you easily find the correct circuit for a lighting fixture.

The light bulb socket adapter is polarized to help you find the correct circuit.

The multimeter carrying case is durable and resistant to wear and tear.

Main highlights

【Plug and play】clip adapter is suitable to applied on bare wires, grounding adapter include standard 3-prong to 2-prong conversion interface, efficient and convenient

【Light bulb socket adapter】the polarized handy plug will help you finding the correct circuit of a lighting fixture, just turn off the light fixture, remove existing bulb, and simply screw the adapter securely before inserting a 2 prong plug, easy to operate

【Breaker finder accessory kit】the package include 1 piece clip adapter, 1 piece light socket adapter,1 piece standard 3-prong to 2-prong grounding adapter, 1 piece multimeter carrying case

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6

Xin Tester

9.4

Excellent

Xin Tester AC Digital Circuit Breaker Tracer with Adaptor Integrated GFCI Outlet Tester, 90-120V NCV Electrical Circuit Finder Tool XT-33A Auto Scan Sensitivity Adjustable Electrician Tool

Main highlights

PROFESSIONAL EFFICIENT CIRCUIT TRACER - Automatically identify live devices and detect disconnected locations of AC 90-120V 50/60Hz electric wires, sockets, etc. at home, in house, office, industry for professional electricians, DIYers and beginners.

ADJUSTABLE SENSITIVITY - Designed with the adjustable sensitivity, the electrical circuit tracer is great for use in complex environments or lines with irregular routing. If you cannot be sure the correct circuit breaker controller, you can try to press the signal strength key to switch from lower sensitivities to higher ones and test repeatedly to accurately locate the target.

ACCURATE & FAST IDENTIFYING - Automatically start scanning after powered ON. First scan of the AC circuit breaker finder tool for quickly identifying the circuit breaker. Second scan with sensitivity adjustment to accurately locate pinpoints circuit breaker controller.

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7

BOVKE

9.3

Excellent

BOVKE Carrying Case for Klein Tools ET310 AC Circuit Breaker Finder Electric Tester & 80041 Outlet Repair Tool Kit & RT250 GFCI Outlet Tester with Supplies, Electrical Tools Storage Bag Holder, Black

Main highlights

Superior Material: This circuit breaker finder case is made of hard EVA material and durable fabric, this sturdy klein tools tester bag with good splash-proof, shockproof, against dust. this klein circuit tracer case protect your voltage tester from being damaged in bumping, and reduce scratches and dust from causing for klein outlet tester.

Special Design: This circuit breaker tester holder comes with precise precut slot to fix and protect your klein voltage tester well, prevent your klein multimeter kit from falling while open the electrical tools case, and klein circuit breaker finder tool storage bag will reduce the klein tool from being damaged. The circuit breaker finder carrying case bag comes with double smooth zippers, very convenient to open and close your klein circuit breaker finder kit organizer.

Compatibility: Case Only! ( tools and accessories not included) This electrical tester case is compatible with Klein Tools ET310 AC circuit breaker finder electric tester and voltage tester with integrated GFCI outlet tester, Klein Tools 80041 outlet repair tool kit, Klein Tools 80016 circuit breaker finder tool kit, Klein Tools RT250 integrated GFCI outlet tester and more accessories, keep all the klein tools electrician tools in one case, easy to use.

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8

Ideal Industries

9.2

Excellent

IDEAL Electrical 61-532 Circuit Breaker Finder 120V,Black/Yellow

Why we love it

UL Certified for safety and reliability.

Identifies breakers without interrupting power.

Easy to use with visual and audible indicators.

Main highlights

UL Certified and Compliant
UL Certified, complies with UL 1436 and CSA C22.2 number 160 for use on 120V AC circuits. Ensures safety and reliability.

Quick Circuit Identification
Quickly and easily identifies circuit breakers/fuses without disrupting power. Ideal for quickly finding unmarked breakers and saving time.

Highly Praised Efficiency
Customers appreciate its efficiency in identifying the correct breaker within seconds, significantly reducing the hassle of manual checks.

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9

PAIYULE

9.1

Excellent

Case for Fluke BK120 SmartTrace Breaker Finder and ST120+ GFCI Socket Tester, Voltage Circuit Tracer Holder Tool Bag for Voltage Outlet Tester Multimeter Accessories Storage (Box Only)

Main highlights

Outlet tester storage holder for fluke with premium materials: Case for Fluke digital breaker detector design with hard material offer water-resistance and dust-resistance for your electrical outlet multimeter in harsh job sites. The reinforced shell absorbs impacts from accidental drops, while the fixed inner lining prevents scratches for fluke circuit finder and testers

Electrical circuit tracer organizer with secure shockproof compartments：Smart breaker case with slots snugly hold breaker finder pen, BK120, and ST120 receptacle tester, elastic straps lock voltage detector main unit and probes in place, zippered mesh pocket keeps spare batteries, spare parts accessories handy, electricians can grab tools mid-job without unstrapping

Circuit breaker finder case: Voltage tester design for Fluke BK120 smartTrace breaker finder for fluke ST120+ GFCI socket tester, circuit tracer tool bag providing dedicated slots to securely hold 1 breaker finder NCV detector and 2 socket testers. Ensures all your essential tools (circuit tracer + relay testers) are organized in one compact bag (case only)

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Our top pick

1

Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
The Klein Tools 80016 Circuit Breaker Finder Tool Kit is an essential tool for both professionals and DIY enthusiasts. Designed to quickly and accurately identify the correct circuit breaker for electrical outlets or fixtures, it saves significant time and effort. This versatile kit operates on 90-120V AC circuits, making it suitable for a wide range of residential and commercial applications. The included GFCI outlet tester ensures wiring conditions are safe and correct, while the accessory kit enhances compatibility with its 3-prong to 2-prong adapter, light socket adapter, and alligator clip adapter. Customers praise its ability to swiftly identify breakers, eliminating the need for trial and error and reducing the hassle of mislabeled panels. Whether you’re labeling your home’s breaker panel or working on a large commercial building, this tool kit proves indispensable, offering clear visual and audible indications for a user-friendly experience.

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