Top Circuit Testing Equipment and Tools

The best Circuit Testers includes Klein Tools Circuit Breaker Finder Kit (2-Piece), WINAMOO Automotive Test Light with Voltage Display, Gardner Bender GFI-3501 Ground Fault Tester and many others as mentioned below.

1

Klein Tools Circuit Breaker Finder Kit (2-Piece)

  • High-performance circuit breaker finder kit.
  • Accurately identifies circuit breakers for outlets.
  • Clear visual and audible indications provided.
  • Compatible with 90-120V AC circuits.
  • Built-in GFCI outlet tester included.
  • Accessory kit enhances compatibility with adapters.
  • Light socket adapter for easy identification.
  • Average Rating out of 5:
  • Price Range: $54.98
  • Color: Finder + Accessories
2

WINAMOO Automotive Test Light with Voltage Display

  • Bright LED display for clear, precise readouts.
  • Tests 3V-48V systems efficiently and quickly.
  • Indicates polarity with red and green lights.
  • Sharp stainless steel probe for easy insulation piercing.
  • 96-inch flexible spring wire for broad access.
  • Ergonomic handle for comfort and secure grip.
  • Durable ABS body for long-lasting use.
  • Average Rating out of 5:
  • Price Range: $7.94
3

Gardner Bender GFI-3501 Ground Fault Tester

  • Tests standard and GFCI outlets effectively.
  • Compact design for portability and convenience.
  • Trips between 6-9 mA for safety.
  • Visual LED indicators for easy circuit status.
  • Detects wiring errors quickly and accurately.
  • Checks ground fault interruption and wiring issues.
  • Compatible with extension cords and more appliances.
  • Average Rating out of 5:
  • Price Range: $5.99
  • Size: ‎No Size
4

Klein Tools ET310 Circuit Breaker Finder

  • Quickly identify circuit breakers with precision.
  • Two-part system for easy identification.
  • Visual and audible cues for convenience.
  • Compatible with 90-120V AC circuits.
  • Includes built-in GFCI outlet tester.
  • Compact design for convenient storage.
  • Universal plug for North American outlets.
  • Average Rating out of 5:
  • Price Range: $39.74
5

Klein Tools ET310KIT Circuit Breaker Finder

  • Accurate circuit breaker identification for efficient troubleshooting.
  • Visual and audible alerts for easy breaker locating.
  • Includes built-in GFCI outlet tester for safety checks.
  • Light socket adapter for lighting circuit identification.
  • 3-prong to 2-prong adapter for versatile usage.
  • Alligator clip adapter for testing bare wires.
  • Premium carrying case for organized component storage.
  • Average Rating out of 5:
  • Price Range: $62.67
  • Color: Orange
6

TopDiag 12V Automotive Test Light Kit

  • Diagnoses vehicle electrical system issues efficiently.
  • Tests voltage, components, and grounds quickly.
  • Features short circuit and diode detection.
  • Supports grounding tests and jump lead functionality.
  • LED lights illuminate work in dark areas.
  • Compatible with 6V to 30V vehicles.
  • 1-year warranty and responsive customer support.
  • Average Rating out of 5:
  • Price Range: $24.99
  • Color: Black
7

Klein Tools ET450 Circuit Breaker Finder Kit

  • Reliable circuit tracing for accurate electrical identification.
  • Adjustable sensitivity for various materials and depths.
  • Versatile for tracing wires, pipes, and conduits.
  • Audible and visual indicators for signal strength.
  • Built-in flashlight for low-light tracing situations.
  • Non-contact voltage function enhances safety during testing.
  • Complete kit with transmitter, receiver, and accessories included.
  • Average Rating out of 5:
  • Price Range: $212.44
  • Color: Multi
8

WINAMOO 6-24V LED Circuit Tester with Probe

  • 6-24V DC voltage testing range.
  • Ideal for automotive electrical circuits.
  • High visibility LED bulb included.
  • Sharp stainless steel probe for precision.
  • Durable PU spring wire, 135 inches long.
  • Insulation protective rubber tip for safety.
  • Convenient one-hand operation with large alligator clip.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Color: Clear
9

Anyongora Automotive Test Light with Voltmeter

  • Precise voltage testing for reliable circuit diagnostics.
  • 96-inch cable for easy access in tight spaces.
  • Durable construction for long-term use and reliability.
  • 3-48V range for diverse vehicle applications.
  • User-friendly design ensures safe, simple operation.
  • Stainless steel clips for secure connections.
  • Ideal for both novice and experienced users.
  • Average Rating out of 5:
  • Price Range: $6.99
  • Color: BLACK
10

Klein Tools [80025] Outlet Tester Kit

  • Complete outlet tester tool kit for convenience.
  • Includes GFCI tester and voltage tester pen.
  • Quickly identifies common wiring problems.
  • Confirms GFCI outlet operation effectively.
  • Non-contact voltage detection for safety.
  • Bright LED indicators for easy status checks.
  • Digitally controlled ON/OFF for user-friendly operation.
  • Average Rating out of 5:
  • Price Range: $24.99
  • Color: Red
11

Klein Tools RT210 Outlet Tester

  • Detects common wiring issues in outlets.
  • Compatible with standard and GFCI receptacles.
  • Durable design withstands 6.6-foot drops.
  • Operates in temperatures from 32°F to 140°F.
  • Supports 110/125V AC, 50/60Hz voltage.
  • Provides quick and accurate wiring tests.
  • Enhances electrical safety in homes and workplaces.
  • Average Rating out of 5:
  • Price Range: $12.95
  • Color: Black/Orange
12

WINAMOO Automotive Test Light with Voltage Display

  • Wide voltage range of 5V-120V
  • Clear LED display for easy reading
  • Bidirectional LED indicators for polarity
  • 96-inch flexible spring wire for convenience
  • Durable stainless steel probe for reliable testing
  • Anti-lost protective sleeve for safe storage
  • Essential tool for electrical troubleshooting
  • Average Rating out of 5:
  • Price Range: $9.99
13

Sperry GFI6302 GFCI Outlet Tester

  • Durable ABS housing with rubber grips.
  • Compact and ergonomic design for easy handling.
  • Quick visual indication with color-coded neon lights.
  • Tests standard 3-wire and GFCI outlets.
  • Rated for 10 ft drop and 250 lb crush.
  • Recognized by OSHA as NRTL certified.
  • Backed by a limited lifetime warranty.
  • Average Rating out of 5:
  • Price Range: $7.86
  • Size: ‎Pack of 1
14

AWBLIN Digital LED Circuit Tester (3-60V)

  • Unique anti-lost needle guard protection design.
  • Bidirectional voltage testing with LED indication.
  • Wider voltage range up to 60V.
  • Safe for vehicle computers; prevents damage.
  • Flexible 102-inch spring wire for easy access.
  • Durable design with anti-bend tail wire.
  • 100% satisfaction guarantee for customer support.
  • Average Rating out of 5:
  • Price Range: $17.59
  • Color: Black
15

Chazcool Circuit Tracer Tool (EM415PRO)

  • Detects short and open circuits easily.
  • LED display for clear status indication.
  • Audio feedback for quick diagnosis.
  • Adjustable sensitivity for precise targeting.
  • Operates on 6-42V DC power supply.
  • Includes flexible probe for hard-to-reach areas.
  • Compact and portable with storage bag.
  • Average Rating out of 5:
  • Price Range: $21.99
  • Color: Black
16

Klein Tools RT110 Outlet Tester

  • Clear light sequence for easy wiring identification.
  • Compliant with UL and CSA safety standards.
  • Wide operating temperature range for versatile use.
  • Durable design withstands 6.6-foot drops.
  • Supports 110/125V AC in 3-wire outlets.
  • Detects common wiring issues effectively.
  • Quickly identifies potential outlet problems.
  • Average Rating out of 5:
  • Price Range: $9.97
  • Size: ‎One Size
17

WINAMOO 6V-24V Circuit Tester Pen

  • Bright bulb for clear light indication.
  • Durable ABS body for long-lasting use.
  • Ergonomic handle for comfortable grip.
  • Sharp probe for piercing wires easily.
  • Large alligator clip for one-hand operation.
  • 6-24V testing range for various circuits.
  • Essential tool for automotive electrical troubleshooting.
  • Average Rating out of 5:
  • Price Range: $8.99
18

Autel PowerScan Circuit Tester Tool [12-24V]

  • All-in-one circuit tester for vehicles.
  • Accurate voltage and polarity testing.
  • Component activation and troubleshooting capabilities.
  • 20ft extension cable for easy access.
  • Built-in flashlight for low-light conditions.
  • 1-year warranty and excellent customer support.
  • Average Rating out of 5:
  • Price Range: $89.99
19

Leak Saver - HVAC Fuse Tester (3A/5A)

  • Prevent blown fuses during circuit troubleshooting.
  • Includes 3 Amp and 5 Amp breakers.
  • UL rated for 24V AC/DC and 125/250V AC.
  • Compatible with various HVAC systems and equipment.
  • Self-adhesive backing for easy temporary installation.
  • Replaces multiple OEM fuse models effectively.
  • 100% satisfaction guarantee from EPA certified technicians.
  • Average Rating out of 5:
  • Price Range: $19.95
  • Material: Alloy Steel, Plastic, Copper
20

ONLINE LED STORE 4-Way Trailer Wiring Tester

  • Straightforward plug-and-play setup for easy testing.
  • Quickly isolate wiring issues between vehicle and trailer.
  • Clear LED indicators for immediate problem identification.
  • Durable construction, resistant to corrosion and impact.
  • Compact design for convenient storage in vehicles.
  • Compatible with standard 4-way flat trailer connectors.
  • No tools required for effective light circuit testing.
  • Average Rating out of 5:
  • Price Range: $6.99
  • Color: Black
21

Klein Tools NCVT1PKIT Electrical Tester Kit

  • Non-contact voltage detection from 50 to 1000V AC.
  • Bright LED indicators for operational and voltage detection.
  • Auto-power off feature for battery conservation.
  • Durable design with 6.6-foot drop protection.
  • Includes GFCI outlet tester for wiring safety.
  • Compact size with a convenient pocket clip.
  • Complete kit with instructions and necessary batteries.
  • Average Rating out of 5:
  • Price Range: $20.01
  • Color: Green,Red
22

Klein Tools Coax Tester Kit [VDV512-101]

  • Tests coaxial cables efficiently and accurately.
  • Maps up to 4 locations simultaneously.
  • Simple push-button operation for easy use.
  • LED indicators show PASS, OPEN, or SHORT.
  • Color-coded remotes enhance multi-cable testing.
  • Includes remote holder for convenient storage.
  • Powered by replaceable AAA batteries for convenience.
  • Average Rating out of 5:
  • Price Range: $25.99
  • Color: cranberry
23

VLOUQIC Automotive Circuit Tester (6V-24V)

  • Ergonomic design for comfort and safe grip.
  • High-quality, shatterproof materials withstand rough use.
  • Bidirectional testing for diagnosing shorted fuses.
  • Long stainless steel probes for tight space access.
  • Insulated rubber tips protect against electric shocks.
  • Bright bulb indicates circuit signals effectively.
  • Wide application for 6-24V DC vehicle circuits.
  • Average Rating out of 5:
  • Price Range: $5.98
  • Color: Black
24

Fluke ST120+ GFCI Socket Tester

  • Integrated GFCI test button for safety checks.
  • Bright LEDs indicate outlet wiring status clearly.
  • Compact design for easy portability and storage.
  • Rugged construction withstands tough jobsite conditions.
  • Audible beeper aids quick breaker status identification.
  • Simplifies troubleshooting for electricians and DIYers alike.
  • Reliable tool for maintaining electrical safety standards.
  • Average Rating out of 5:
  • Price Range: $25.42
  • Color: yellow
25

Klein Tools RT390 Circuit Analyzer

  • Large color LCD for easy readability.
  • Identifies wiring faults quickly and accurately.
  • Detects open neutral and open ground issues.
  • Tests AFCI and GFCI devices effectively.
  • Conducts load testing for various amperages.
  • Automatically powers off to save battery.
  • Detachable cord for easy storage and handling.
  • Average Rating out of 5:
  • Price Range: $131.36
  • Color: Orange
26

TopDiag P100 Circuit Probe Tester Kit

  • Versatile automotive electrical tool for testing systems.
  • Tests AC/DC voltage, resistance, continuity, and polarity.
  • Built-in circuit breaker for user safety.
  • Components activation for accurate diagnostics.
  • Includes 20ft durable extension cable for convenience.
  • Wide application for various automotive diagnostics.
  • Supports multiple languages for user accessibility.
  • Average Rating out of 5:
  • Price Range: $42.99
  • Color: Black
27

GroundLuxe Outlet Tester for Wiring Assessment

  • Quickly assess receptacle safety risks.
  • Accurately checks for proper grounding.
  • Easy-to-read outlet checker indicators.
  • Detects common wiring problems swiftly.
  • UL-certified for reliable performance.
  • Designed for 120V 3-prong US outlets.
  • Essential for using grounding products safely.
  • Average Rating out of 5:
  • Price Range: $9.99
  • Color: White
28

Fluke SmartTrace Breaker Finder & Tester

  • 4-in-1 multifunctional electrical testing tool.
  • Efficient breaker finder with audible alerts.
  • Non-contact voltage detection for safety.
  • Unique dual-sensitivity NCV mode available.
  • Built-in socket tester with LED indicators.
  • Verifies wiring in standard and GFCI outlets.
  • Bright LED flashlight for visibility in dark areas.
  • Average Rating out of 5:
  • Price Range: $79.99
  • Color: Yellow
29

EVOULTES 3-72V Circuit Tester with Buzzer

  • 3-72V testing range for multiple vehicle circuits.
  • Bidirectional voltage testing with buzzing alerts.
  • Clear LED digital display for accurate readings.
  • Durable stainless steel probe for easy access.
  • Heavy-duty construction with shatter-proof design.
  • 140-inch flexible spring wire for convenience.
  • Anti-lost needle cover for easy storage.
  • Average Rating out of 5:
  • Price Range: $17.97
  • Color: Green,Red
30

MESTEK Circuit Breaker Finder Tool Kit

  • Quickly locates circuit breakers in 120V systems.
  • Compatible with 90-120V AC 50/60Hz systems.
  • Easy three-step operation, no manual adjustments needed.
  • Visual and audible alerts for easy identification.
  • Includes built-in GFCI outlet tester for safety.
  • User-friendly design with protective features for durability.
  • Comes with batteries, storage bag, and manual.
  • Average Rating out of 5:
  • Price Range: $49.99
  • Color: Blue