Circuit Testers of 2025
Best Choice1
Clicked 20 times in the last monthTopDiag14% OffCircuit Breaker Finder Tool, Battery Tester, AC DC Voltage Tester, Fuel Injector Tester, 9V-30V Automotive Circuit Tester with 40FT Cable, P180
Main highlights- Wild Application & Multiple Languages Available: Topdiag P180 circuit tester automotive can be widely use for all 12V-24V vehicle elecrtical system diagnostics, such as cars, motorcycles, excavator, SUV, steamships, etc. P180 power tester supports 10+ languages for vehicle owners: English, Spanish, French, Italian, German, Portuguese, Polish, Korean, Japanese, and more.
- Ultra-wide Voltage Range & Short Circuit Located: TopDiag P180 test probe supports a series of voltage testing, such as -100V~+100V AC and 0-200V DC voltage detection, resistance test and diode test and other vehicle testing. P180 probe tester automotive also supports track and locate the short circuit, help you troubleshoot faulty components accurately and quickly.
- Jump Lead Function & Circuit Breaker Protection: With jump lead function, Topdiag P180 probe tester can be used to check if there is a fault or problem in the power supply of your vehicle grounding. And P180 electrical circuit tester is built-in circuit breaker protection for the user and vehicle's safety. The working principle of is - the circuit breaker will trip if overload. Equipped with dual LED lights on the top of TopDiag P180 automotive electrical tester, it can light up the dark working area and help users make diagnoses even in the dark.
- Component Activation & Fuel Injector Test: Under component activation mode, P180 electrical tester allows to activate different components, such as starter, headlights, blowers, solenoids, cooling fans, fuel pumps, etc. And TopDiag P180 circuit tester can also test the signal of fuel injector, touch the injector with the probe, the current signal waveform will displayed on the LCD screen.
- Circuit Breaker Finder Tool: The position of the open conductor can be quickly detected. Plug the tip of the probe into an open wire, send a sonic signal to the wire, and use the TopDiag P181 wire finder to follow the wire from the tip of the probe to find the location of the breakpoint.
- Car Battery Tester: ONLY for 12V Vehicles. It offers quick tests for battery voltage, load test and charge status, along with cranking and charging system tests to assess performance and ensure the reliability of your vehicle. In addition, P180 automotive electrical tools will come with extra 20ft cable, so you can perform diagnosis around the vehicle.
9.7Exceptional
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Value for Money2
AWBLINAWBLIN Automotive Test Light 3-60V DC Digital LED Circuit Tester, Heavy Duty Light Tester with Voltmeter, Auto Bidirectional Voltage Tester Electric Test Pen
9.7 worth the money9.5 Simple to use9.5 PrecisionWhy we love it
Unique design Anti lost needle guard
LED indication, bidirectional voltage testing
Wider voltage range up to 60V
9.6Exceptional
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3
Klein Tools15% OffKlein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit for Energized and Non-Energized Breakers, Fuses, and Wires
9.9 Simple to use9.9 PrecisionWhy we love it
Reliable tracing for energized and non-energized circuits.
Adjustable sensitivity for precise wire identification.
Versatile applications for various electrical tasks.
9.4Excellent
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4
Klein ToolsKlein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet and Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 6-Piece
Why we love it
Complete kit for electrical tasks.
Rugged and reliable tools.
Great value for price.
9.3Excellent
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5
Klein ToolsKlein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
9.9 lasts a long time9.5 Simple to use9.3 FlexibilityWhy we love it
Easy to use for DIY enthusiasts.
Includes useful adapters for versatility.
Quickly tests and identifies circuits.
9.2Excellent
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6
Klein ToolsKlein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester
9.9 lasts a long time9.3 Simple to use8.9 worth the moneyWhy we love it
Easy to use and setup.
Accurate breaker identification.
Includes GFCI tester.
9.1Excellent
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7
Klein ToolsKlein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters and Case
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
9.0Excellent
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8
AutelAutel PowerScan Automotive Circuit Tester, Power Circuit Probe Tool, 12-24V Electrical Short Open Breaker Circuit Finder, AC/DC Current Resistance, Duty Cycle, & 20FT Extension Cord, for 99% Cars
9.9 clearly written9.9 worth the money9.9 PrecisionWhy we love it
Accurate and versatile for various electrical tests.
Easy-to-read display and intuitive interface.
Includes long extension cable and built-in flashlight.
8.8Very Good
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9
Klein Tools12% OffKlein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time
Main highlights- LOAD TESTING CAPABILITIES: Conduct 12A, 15A, and 20A load testing to measure percentage voltage drops, providing valuable insights into electrical performance
- DUAL WIRING FAULT DETECTION: Capable of detecting dual wiring faults, including open neutral and open ground, enhancing safety measures
- DETACHABLE CORD: Detachable cord allows for easy storage, providing convenience and organized handling of the Circuit Analyzer
- COMPREHENSIVE WIRING FAULT DETECTION: Detect and identify common wiring faults in standard, AFCI, and GFCI electrical outlets, ensuring thorough evaluation
- CLEAR COLOR LCD DISPLAY: Circuit Analyzer with large color LCD provides easy-to-understand results for wiring faults, AFCI, GFCI, voltage drops, and device trip time
- AUTO POWER OFF: Automatically powers off after 5 minutes of inactivity, conserving battery life and ensuring long-term usage
- AFCI AND GFCI DEVICE INSPECTION: Inspect AFCI and GFCI devices, measuring trip time and trip current for accurate functionality assessment
8.7Very Good
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Klein ToolsKlein Tools 69149P Electrical Test Kit with Digital Multimeter, Non-Contact Voltage Tester and Electrical Outlet Tester, Leads and Batteries
9.9 Precision9.9 worth the money9.9 Simple to useWhy we love it
Comprehensive set for household electrical tasks.
Accurate and reliable for everyday use.
Affordable without compromising quality.
8.6Very Good
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