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Best circuit testers - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KLEIN TOOLS

Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet and Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece

KLEIN TOOLS

$89.99

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Main highlights
- 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
- SMART BUY: A complete, high-performance kit that offers convenience and value
- 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
- 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
- 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
- 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
$89.99
2
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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

KLEIN TOOLS

$69.99

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Main highlights
- VISUAL AND AUDIBLE INDICATORS are delivered when the correct breaker has been located
- SMART BUY: A complete, high-performance kit that offers convenience and value
- RED LEDS AND TONE will sound when voltage is detected
- NON-CONTACT VOLTAGE TESTER detects voltage in cables, cords, circuit breakers, lighting fixtures, switches, and more
- GFCI OUTLET TESTER includes a transmitter connected to the electrical outlet or fixture and a receiver to locate the correct breaker
- DIGITAL CIRCUIT BREAKER FINDER for a panel corresponding to the circuit to which an electrical outlet or fixture is connected
- BRIGHT GREEN LED LIGHTS indicates volt pen is powered on
$69.99
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KLEIN TOOLS

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

KLEIN TOOLS

$49.97

More Details
Main highlights
- WIDE COMPATIBILITY: Operates on 90-120V AC circuits, making it suitable for a variety of electrical systems and installations
- UNIVERSAL CONNECTIVITY: The Transmitter features a three-pin plug for easy connection to North-American-style grounded electrical outlets, ensuring seamless compatibility
- 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
- CONVENIENT STORAGE: The Transmitter docks in the Receiver, offering a compact storage solution, keeping the components together when not in use
- CLEAR INDICATIONS: The Receiver provides visual and audible cues when the correct breaker is found, ensuring a hassle-free locating process
- BUILT-IN GFCI TESTER: The Transmitter includes a GFCI outlet tester, enabling you to inspect wiring conditions and test GFCI devices for added safety
- ACCURATE CIRCUIT BREAKER IDENTIFICATION: Quickly locate the correct breaker with precision using our circuit breaker finder, ensuring efficient electrical troubleshooting
$49.97
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KLEIN TOOLS

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

KLEIN TOOLS

$69.98

More Details
Main highlights
- PREMIUM CARRY CASE: Dense foam organizes and protects all components in a premium hard carrying case
- 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
- 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
- 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
- ALLIGATOR CLIP ADAPTER: Enables testing on bare wires, providing versatile usage options
- 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
$69.98
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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

KLEIN TOOLS

$59.39

More Details
Main highlights
- VERSATILE OPERATION: Works on 90-120V AC circuits, suitable for various residential and commercial applications
- SMART BUY: A complete, high-performance kit that offers convenience and value
- LIGHT SOCKET ADAPTER: Light socket adapter allows for easy circuit identification in lighting fixtures
- GFCI OUTLET TESTING: Transmitter features a built-in GFCI outlet tester to inspect wiring conditions and test GFCI devices
- 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
- ADDITIONAL ACCESSORIES: Circuit Breaker Finder Accessory Kit (Cat. No. 69411) includes a 3-prong to 2-prong grounding adapter for enhanced compatibility
- ACCURATE CIRCUIT IDENTIFICATION: Circuit Breaker Tool Kit helps locate the correct circuit breaker for electrical outlets or fixtures, saving time and effort
$59.39

Best circuit testers - Holiday Sale 2025

Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet and Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-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 ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester

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

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

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