Top 10 Best klein circuit breaker finder in 2026

Last Updated - 6/14/2026

🏆Best Choice

KLEIN TOOLS

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

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•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

View offer on:

$49.97

Check Price

KLEIN TOOLS

Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•CLEAR LCD READOUT: GFCI Receptacle Tester features a large backlit LCD readout for easy voltage reading and clear indication of wiring conditions
•TRIP TIME DISPLAY: LCD readout shows the time required to trip a GFCI device, allowing for quick and accurate troubleshooting
•DETECT COMMON WIRING FAULTS: Detect and identify common wiring faults, ensuring electrical safety and proper functionality of GFCI receptacles
•PATENT-PENDING OPEN NEUTRAL & OPEN GROUND DETECTION: Innovative detection system identifies Open Neutral and Open Ground wiring faults, enhancing safety measures
•CONVENIENT AUTO-HOLD FEATURE: Auto-Hold function holds the reading for hard-to-reach outlets, providing convenience and ease of use
•VISIBLE LED INDICATORS: Bright green and red LEDs illuminate to provide clear visual indicators of wiring conditions, making it easy to identify issues
•CAT II 135V SAFETY RATING: GFCI Receptacle Tester has a CAT II 135V safety rating, ensuring reliable and safe electrical testing for various applications

View offer on:

$24.97

Check Price

KLEIN TOOLS

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

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•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

View offer on:

$69.98

Check Price

KLEIN TOOLS

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

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•SMART BUY: A complete, high-performance kit that offers convenience and value
•ACCURATE CIRCUIT IDENTIFICATION: Circuit Breaker Tool Kit helps locate the correct circuit breaker for electrical outlets or fixtures, saving time and effort
•CLEAR VISUAL AND AUDIBLE INDICATIONS: Digital Circuit Breaker Finder with GFCI Outlet Tester (Cat. No. ET310) receiver provides clear indications when the correct breaker is found
•VERSATILE OPERATION: Works on 90-120V AC circuits, suitable for various residential and commercial applications
•GFCI OUTLET TESTING: Transmitter features a built-in GFCI outlet tester to inspect wiring conditions and test GFCI devices
•ADDITIONAL ACCESSORIES: Circuit Breaker Finder Accessory Kit (Cat. No. 69411) includes a 3-prong to 2-prong grounding adapter for enhanced compatibility
•LIGHT SOCKET ADAPTER: Light socket adapter allows for easy circuit identification in lighting fixtures

View offer on:

$59.99

$64.98

-8%

Check Price

focemta

FOCEMTA Circuit Breaker Finder Kit with GFCI Outlet Tester for 90-135V AC Circuits,includes Light Socket Adapter, 3-2 Prong Grounding Adapter & Clip adapter,Portable Electrical Tool with Carrying Case

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•All-in-One Circuit Diagnosis: Combines Circuit Breaker Finder, Outlet Tester & GFCI Tester – Quickly locate breakers, test outlets (open ground/reverse polarity), and verify GFCI protection in one compact tool. Includes essential accessories: light socket adapter (for lamp circuit testing),3-prong to 2-prong grounding adapter and alligator clip adapter (can be used for bare wire). Perfect for troubleshooting home wiring or commercial systems
•Precise Voltage & Signal Tracking: Dual-function LCD screen displays real-time voltage (90-135V) and signal strength for precise circuit tracing—unlike basic testers, our breaker finder eliminates guesswork by providing exact data while featuring audio/visual alerts, ideal for electricians and DIYers tackling complex panels
•Professional-Grade GFCI Tester with Real-Time Diagnostics & Battery Backup： This advanced outlet tester verifies GFCI protection status while uniquely displaying testing duration on its large screen—a feature standard testers lack. It combines bright red/green LED indicators for instant pass/fail signals with a detailed display that diagnoses 6 common wiring faults (open circuits, reverse polarity, etc.). The built-in battery locks test data for 10 seconds during power loss, ensuring technicians never miss critical readings, while its portable design streamlines inspections in homes, commercial sites, or emergencies
•Durable & Portable with Complete Accessories： Featuring an impact-resistant ABS housing and lightweight design, this digital circuit breaker finder withstands tough job site demands while maintaining a compact, rugged build. The upgraded clip adapter eliminates traditional two-piece construction with an innovative all-in-one metal-plastic fusion design, preventing slippage and ensuring secure electrical contact to avoid short circuits. Perfect for troubleshooting home or commercial electrical systems. Includes a sturdy carrying case for convenient storage and transportation
•Complete Ready-to-Use Kit with Certified Safety： Includes transmitter (IEC61010-1 screw-sealed battery compartment), receiver (non-slip grip), 2x AA & 2x AAA batteries, screwdriver, manual, carrying case, light socket adapter, 3-prong to 2-prong grounding adapter, and alligator clip lead，ETL-certified CAT II 135V rating ensures safe residential/commercial circuit diagnostics right out of the box

View offer on:

$55.99

$59.99

-7%

Check Price

KLEIN TOOLS

Klein Tools ET450 Advanced Underground Circuit Breaker Finder and Wire Tracer Kit for Energized and Non-Energized Breakers, Fuses, and Wires

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•RELIABLE CIRCUIT TRACING: The Advanced Circuit Tracer Kit ensures dependable tracing of energized or non-energized breakers, fuses, and wires for accurate electrical identification
•ADJUSTABLE SENSITIVITY: Easily modify receiver sensitivity to detect transmitted signals through various materials like drywall, cement block, or underground, enhancing tracing capabilities
•VERSATILE APPLICATIONS: Trace wires, conduit, pipes, or isolate a single wire within a bundle, making it suitable for a wide range of electrical tracing tasks
•SIGNAL STRENGTH INDICATION: Audible beep and visual indicators on the receiver provide clear signal strength feedback, aiding in precise wire identification
•ILLUMINATION AND NCV FUNCTION: Receiver includes a built-in flashlight for low-light areas and a non-contact voltage (NCV) function to test wire energization, enhancing safety and visibility during tracing
•AC/DC VOLTAGE INDICATORS: The transmitter features external voltage indicators (12V, 48V, 120V, 240V, and 480V), allowing for easy identification of different voltage levels during tracing
•COMPLETE PACKAGE: The kit includes a transmitter, receiver, blade and ground prongs, alligator clips, 3-foot and 20-foot lead adapters, AC plug leads, batteries, instructions, and a sturdy carrying case for convenient storage and portability

View offer on:

$299.98

Check Price

focemta

Focemta Circuit Breaker Finder & GFCI Outlet Tester with Digital LCD Display, 90-135V Electrical Circuit Tracer Tool for Electricians/DIY – Lightweight (Includes Batteries & Carrying Case)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•All-in-One Circuit Diagnosis: Combines Circuit Breaker Finder, Outlet Tester & GFCI Tester – Quickly locate breakers, test outlets, and verify GFCI protection in one compact tool. Perfect for troubleshooting home wiring or commercial systems
•Precision Voltage & Signal Strength Display: Dual-Function LCD Screen – Displays Real-Time Voltage (90-135V) and Signal Strength for precise circuit tracing. Unlike basic testers, our circuit breaker finder tool eliminates guesswork by showing exact data, ideal for electricians and DIYers tackling complex panels
•LED indicator light and large screen: The GFCI Tester has an automatic trip testing function, which is different from general testers. Our tool can accurately display the time taken for tripping. The clear visual feedback of the red/green indicator lights combined with the details displayed on the large screen can accurately diagnose 6 common wiring faults, including open circuit/reverse polarity
•Durable and portable, with high on-site efficiency: This Breaker Finder discoverer features an impact resistant ABS housing and a lightweight design (0.9 pounds) - capable of withstanding the requirements of the work site, compact in shape, sturdy and durable, suitable for repairing and troubleshooting household or commercial circuit faults. Includes a suitcase for easy storage and transportation
•Complete Ready-to-Use Package Includes: 1x Transmitter (IEC61010-1 Screw-Sealed Battery Compartment)，1x Receiver （with anti slip design），2x AA + 2x AAA Batteries，1x Screwdriver，1x Manual，1x Carrying Case，Certified CAT II 135V Safety Rating with ETL Compliance Ensure zone safety in residential/commercial wiring diagnosis

View offer on:

$45.99

$49.99

-8%

Check Price

KLEIN TOOLS

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

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•SMART BUY: A complete, high-performance kit that offers convenience and value
•CONVENIENT KIT includes three testers with leads for electrical test and measurement applications; Digital Multimeter, Non-Contact Voltage Tester with Flashlight, and GFCI Receptacle Tester
•VARIETY OF FEATURES on the Digital Multimeter MM320 measures up to 600V AC/DC voltage, 10A DC current and 2MOhms resistance; also tests batteries, diodes, and continuity
•DUAL-RANGE TESTING CAPABILITIES allow Voltage Tester NCVT3P to detect from 12 to 1000 VAC or 70 to 1000 VAC for a broad variety of low-voltage or standard voltage applications
•DETECT WIRING CONDITIONS on GFCI Receptacle Tester RT250 which features a large backlit LCD readout of voltage, and clear indication of wiring conditions, with patent pending detection of Open Neutral / Open Ground wiring faults
•CIRCUIT BREAKER FINDER quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected
•GFCI TESTER consists of two parts: a Transmitter connected to the electrical outlet or fixture, and a Receiver used to scan the panel to locate the correct breaker

View offer on:

$89.99

Check Price

KLEIN TOOLS

Klein Tools 69411 Circuit Breaker Finder Accessory Kit, Circuit Breaker Leads and Adapters

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•COMPATIBLE WITH ET300 AND ET310: Designed for use with ET300 and ET310 Digital Circuit Breaker Finder, enhancing functionality
•LIGHT SOCKET ADAPTER: Easily find the correct circuit of a lighting fixture using the included light socket adapter
•ALLIGATOR CLIP ADAPTER: Enables testing on bare wires, providing versatile usage options
•GROUNDING ADAPTER INCLUDED: Includes standard 3-prong to 2-prong grounding adapter for added convenience
•EXPAND YOUR TESTING CAPABILITIES: Enhance circuit breaker finding and testing capabilities with these versatile adapters
•EFFICIENT CIRCUIT IDENTIFICATION: Quickly identify circuits with the light socket adapter, saving time and effort
•VERSATILE USAGE OPTIONS: Alligator clip adapter allows for easy testing on various types of wires and connections

View offer on:

$21.97

Check Price

EAORBD

EAORBD Breaker Filler Plate for 1 Inch Load Center Flush Cover, with Electrical Panel Labels and Fuse Box Stickers for Universal Circuit Breaker Panel Cover 10-Pack (1 Inch)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•1 In Universal Fit Circuit Breaker Filler Plate: Breaker Filler for electrical panels and breakers, Perfect match for unused 1-inch breaker panel blanks locations, with Circuit Breaker Labels Stickers, Easy Read and Install
•Circuit Breaker Cover Functional: Breaker Box Cover for Square D panel and GE panels covers, Filler Plate the gap Maintains the integrity and safety of the load center, prevents the ingress of dust and foreign objects, and avoids inadvertent contact with energized parts
•High Quality Materials: 1 Inch Breaker box cover square d breaker filler plate Made of high-quality insulating materials with good fireproof, moisture-proof and wear-resistant properties, which can be used for a long time in complex electrical environments.
•Electrical Panel Blank Easy to install: Circuit Breaker Plate the installation process is simple and quick, Non-slip circuit breaker filler panel will not fall off panel when cover is removed and fits snugly. without complex tools and professional skills, you can easily complete the installation, saving time and labor costs.
•Safety Protection: This Circuit Breaker Filler Panel can effectively close the unused circuit breaker position, breaker covers preventing accidental contact and foreign objects from entering, providing reliable safety protection for your circuit system.

View offer on:

$15.99

$18.99

-16%

Check Price

📊

📈 How we rank

With our cutting-edge technology, we examine thousands of products and retailers, assessing reviews, ratings, trends, and sales rankings to identify what matters most to users like you.

Our team evaluates this data alongside genuine user feedback, merging AI analysis with human insights to provide you with real-time, highly-rated recommendations that empower your decision-making with clarity and confidence.