Best Plug Tester

Peter | 30-03-2025

In this article, we will explore the Best Plug Tester that are now on the market. In addition to that, we have provided you with a detailed guide that will assist you in choosing the right product. We really hope that by looking through the reviews of the top Best Plug Tester products that we’ve provided below, you’ll be able to quickly narrow your choices and select the one that best satisfies your needs.

We have spent lots of time testing. According to our research, we think Klein Tools Best Plug Tester is the best overall. For more of our top picks, read on! Also, check out our buying guide for some tips on how to choose the right Best Plug Tester.

Editor's Choice
Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire
Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire
Premium Pick
Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical
Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical
Budget Pick
Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer, 110-125V AC, for GFCI /
Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer, 110-125V AC, for GFCI /

Top 10 Best Plug Tester

We researched and compared the top products in the Best Plug Tester category to provide you with these recommendations.

1. Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire

Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire
9.8

Klein Tools

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  • 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

2. Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical

Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical
9.5

Klein Tools

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  • EFFECTIVE GFCI WIRING PROBLEM DETECTION: GFCI Tester detects common wiring problems in standard and GFCI receptacles, ensuring electrical safety
  • COMPATIBLE WITH GFCI OUTLETS: Works on GFCI outlets and verifies the proper operation of the ground fault protective device, providing peace of mind
  • DURABLE AND TOUGH: Built to withstand a 6.6-foot (2m) drop, ensuring durability and reliability in various working conditions
  • WIDE OPERATING TEMPERATURE RANGE: Can be used in temperatures ranging from 32-Degree to 140-Degree Fahrenheit (0-Degree to 40-Degree Celsius), offering versatility
  • VERSATILE VOLTAGE SUPPORT: Designed for use with 110/125V AC at 50/60Hz in 3-wire outlets, meeting common voltage requirements
  • QUICK AND ACCURATE TESTING: The GFCI Tester provides a fast and reliable solution for detecting wiring issues and confirming the functionality of GFCI outlets
  • ENSURE ELECTRICAL SAFETY: By utilizing the GFCI Tester, users can verify proper wiring and operation, promoting electrical safety in homes and workplaces

3. Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer, 110-125V AC, for GFCI /

Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer, 110-125V AC, for GFCI /
9.1

Gardner Bender

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  • Tests: standard outlets, GFCI outlets, extension cords
  • Compact and easy to use
  • Tester trips between 6-9 mA
  • Succession of yellow and red lights provide indication of circuit status or specifies wiring errors
  • Tests for ground fault interruption, open ground, open neutral, open hot, hot/ground reverse, hot/neutral reverse and correct wiring

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

Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet
8.9

Klein Tools

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  • 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

5. Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets

Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets
8.7

Klein Tools

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  • CLEAR LIGHT SEQUENCE: Outlet tester's light sequence indicates correct/incorrect wiring, ensuring easy identification of wiring issues
  • COMPLIANT WITH STANDARDS: Receptacle tester conforms to UL Std 1436 and is certified to CSA Std C22.2 #160, ensuring safety and quality
  • WIDE OPERATING TEMPERATURE RANGE: Can be used in temperatures ranging from 32-degrees F to 140-degrees F (0-degrees C to 40-degrees C), providing versatility
  • DURABLE AND TOUGH: Built to withstand a 6.6-foot (2m) drop, ensuring longevity and reliability in various working conditions
  • VERSATILE VOLTAGE SUPPORT: Designed for use with 110/125V AC at 50/60Hz in 3-wire outlets, catering to common voltage requirements
  • DETECTS COMMON WIRING PROBLEMS: Specifically designed to detect the most common wiring problems found in standard receptacles, ensuring safety and functionality
  • EASY AND RELIABLE TESTING: The receptacle tester offers a convenient solution for testing outlets and identifying potential wiring issues quickly and accurately
  • Designed to detect the most common wiring problems in standard receptacles

6. Sperry Instruments GFI6302 GFCI Outlet / Receptacle Tester, Standard 120V AC Outlets, 7 Visual

  • DURABLE: Hi-Impact Resistant ABS housing with soft over-molded rubber grips with a compact ergonomic design (GFI6302 and VD6504)
  • QUICKLY READ: Bright color-coded neon lights for easy visual indication (GFI6302)
  • TESTING CAPABILITY: Standard 3-Wire and GFCI protected 120Volt AC Outlets. Frequency (Hertz) 60Hz (GFI6302)
  • GFCI FUNCTION: Tests GFI Outlets and standard outlets that are wired in series with GFCI outlets (multiple outlets in kitchen or bath)
  • RATED: 10 ft Drop and 250 lb Crush, CAT Rating III 300V, C-UL US, CE-Marking and recognized by Occupational Safety Hazards Association (OSHA) as an National Recognized Testing Laboratory (NRTL). 10 ft Drop and 250 lb Crush
  • WARRANTY: Sperry Instruments Backed Limited Lifetime Warranty

7. Klein Tools 80025 Outlet Tester Kit with GFCI Tester and Non-Contact Voltage Tester, 2-Piece

Klein Tools 80025 Outlet Tester Kit with GFCI Tester and Non-Contact Voltage Tester, 2-Piece
8

Klein Tools

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  • COMPLETE OUTLET TESTER TOOL KIT: Includes GFCI Tester (Cat. No. RT210) and Non-Contact Voltage Tester Pen (Cat. No. NCVT1P)
  • DETECT COMMON WIRING PROBLEMS: Quickly identifies wiring issues in standard and GFCI receptacles
  • GFCI OUTLET COMPATIBLE: Confirms the proper operation of ground fault protective devices in GFCI outlets
  • VOLTAGE TESTER PEN: Non-contact detection of voltage in cables, circuit breakers, lighting fixtures, switches, and more
  • BRIGHT LED INDICATORS: High-intensity green LED indicates operational status, while red LED and warning tone signal voltage detection
  • EASY CONTROL: Digitally controlled ON/OFF power button for convenient operation
  • SAFE AND ILLUMINATING WORKPLACE: LED lights aid in illuminating the work area, enhancing safety and visibility

8. Grounding Tester Earthing for Grounding Products, Electric Outlet Tester Plug in, GFCI Tester,

  • Fits 110-125V AC Outlets: Compatible with standard 120V 3-prong US outlets.
  • Easy to Use: Simply plug in and detect wiring issues with clear indicator lights.
  • Compact & Portable: Lightweight design for easy carrying and storage.
  • Reliable Accuracy: Ensures safety by accurately detecting wiring faults and grounding issues.
  • Built to Last: Durable construction for long-term, reliable performance.

9. Southwire 40022S GFCI Receptacle Tester

Southwire 40022S GFCI Receptacle Tester
7.9

Southwire

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  • Push button gfci test: allows you to quickly test that the gfci trip function is working
  • Fast & accurate: southwires 120 volt ac gfci tester is the ideal tester for home inspectors; electricians and home renovators who need to check the wiring of outlets in kitchens; bathrooms and offices
  • 2-Sided legend: only from southwire! Accurately read test results with the tester facing right-side up or even upside down (depending on the outlets ground location) with brightly colored indicator lights and the 2-sided fault legend
  • 7 tests in one: open ground; open neutral; open hot; hot and ground reversed; hot and neutral reversed; correctly wired; and gfci
  • Small yet durable: its small size wont take up much space and fits perfectly in your tool bag Durable housing with reinforced pins will withstand up to a 6-foot drop5-YearUl listed

10. Fluke ST120+ GFCI Socket Tester with Audible Beeper

  • Integrated GFCI test button to verify the correct operation of GFCI equipped outlets
  • Bright LEDs for fast, easy identification of miswired outlets
  • Compact, rugged design for use at every job
  • Eliminate multiple trips back and forth by using the beeper to help identify if breaker is switched on or off

Peter

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