10 Best Outlet Testers 2021

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

Klein Tools RT210 Outlet Tester – ⭐ Best Overall Outlet Tester

RT210 by Klein Tools

  • Weight: 0.12 pounds
  • Dimensions: 5.3 x 3.8 x 1.5 inches
  • Warranty: This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. This warranty does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident,
Klein Tools RT210 Outlet Tester
  • Detects the most common wiring problems in standard and GFCI receptacles
  • Works on GFI outlets and confirms operation of the ground fault protective device
  • Built to withstand a 6.6-foot (2m) drop
  • Operating temp: 32-Degree to 140-Degree Fahrenheit (0-Degree to 40-Degree Celsius)
  • Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet

Sperry Instruments GFI6302 GFCI Outlet / Receptacle Tester – 💲 Best Budget Outlet Tester

GFI6302 by Sperry Instruments

  • Color: Yellow/Black
  • Weight: 0.1 pounds
  • Dimensions: 6.8 x 3.8 x 1 inches
  • Warranty: Limited Lifetime Warranty
Sperry Instruments GFI6302 GFCI Outlet / Receptacle Tester
  • 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

GFCI Receptacle Tester with LCD Display

RT250 by Klein Tools

  • Weight: 0.3 pounds
  • Dimensions: 4.5 x 2 x 1.1 inches
GFCI Receptacle Tester with LCD Display
  • GFCI RECEPTACLE TESTER FEATURES LARGE LCD READOUT. View results instantly without the need to look at a chart to understand results. In addition to a clear LCD readout, bright green and red LEDs illuminate to show correct or faulty wiring
  • TEST TRIP TIME OF GFCI IN SECONDS. Find out if the trip breaker is functioning and how long it takes to trip
  • DETECT AND IDENTIFY COMMON WIRING FAULTS. Conditions are Wired Correctly, Open Ground, Open Neutral, Open Hot, Dual Open (Neutral & Ground), Reversed Hot/Ground, and Reversed Hot/Neutral. The Dual Open condition is patent pending
  • AUTO-HOLD FUNCTION IS CONVENIENT FOR HARD-TO-REACH OUTLETS. Simply remove tester to view the reading
  • SAFE AND DURABLE TESTER FOR INSPECTIONS IN NORTH AMERICAN 120V OUTLETS. CAT II 135V safety rating and 6.6-foot (2 m) drop protection

Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet

STK001 by Sperry Instruments

  • Color: Yellow and Black
  • Weight: 0.3 pounds
  • Dimensions: 2 x 6 x 9 inches
Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet
  • VERIFIES VOLTAGE PRESENSE: Verifies the presence of AC Voltage prior to working on electrical installation or troubleshooting (GFI6302 and VD6504)
  • 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)
  • CIRCUIT SENSING: Non-Contact sensitivity detects 50-1000V AC and patented battery self-test feature (VD6504)
  • AUDIBLE AND VISIBLE INDICATOR: 360° visual and beeping audio Non-Contact Voltage Detection (VD6504)
  • RATED: CAT Rating III 300V, C-UL US (GFI6302), CAT Rating III 1000V, IV 600V, (VD6504) 10 ft Drop and 250 lb Crush (GFI6302 and VD6504)

Klein Tools ET310 AC Circuit Breaker Finder with Integrated GFCI – 👑 Premium Pick

ET310 by Klein Tools

  • Color: Circuit Breaker Finder
  • Weight: 0.45 pounds
  • Dimensions: 11 x 2.2 x 1.4 inches
  • Warranty: 1 year manufacturer
Klein Tools ET310 AC Circuit Breaker Finder with Integrated GFCI
  • This circuit breaker finder can quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected
  • 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
  • Receiver delivers clear visual and audible indications when the correct breaker has been located
  • Operates on 90-120V AC circuits
  • Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices

KAIWEETS Outlet Tester 48-250V

HT-106 by KAIWEETS

KAIWEETS Outlet Tester 48-250V
  • TESTING CAPABILITY: This Receptacle tester detects the most common wiring faults in standard and GFCI electrical outlets, which is also with the standard 3-Wire and GFCI protected 220 Volt AC Outlets. Capable of detecting the open wiring fault with open ground, open hot, open neutral, reverse polarity, hot/neutral reversed wires.
  • GFCI FUNCTION: This Electric tester tests GFCI devices by simulating ground fault conditions, which works on GFI outlets and confirms operation of the ground fault protective device. It tests standard outlets that are wired in parallel to GFCI outlets (multiple outlets in kitchen or bath, and outdoor receptacles require GFCI protection). Be careful of using this function on normal receptacles. It may cause house wiring trip.
  • VOLTAGE DISPLAY: This GFCI tester with LED display helps you to measure the socket voltage and display it clearly in the LCD screen, it is also designed with a compact ergonomic and Hi-Impact Resistant ABS housing, which maintains an above industry standard impact & crush resistant rating.
  • INSTANT WIRING IDENTIFICATION: The Red LED indicators can be light up clearly for easy visual indication, when activated identify one of the seven common wiring options. An easy to understand chart on the tester helps determine wiring condition in outlet, based on LED lights results.
  • SAFETY CERTIFICATE & Service: This outlet tester with GFCI conforms to CAT III 300V and CE-Marking, which backed Limited Lifetime Service. 7/24 Customer Service.

Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer

GFI-3501 by Gardner Bender

  • Color: Red
  • Weight: 0.05 pounds
  • Dimensions: 2 x 1 x 3.5 inches
  • Warranty: 1 Year Limited
Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer
  • 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

Outlet Tester 48-250V

HT105B by KAIWEETS

Outlet Tester 48-250V
  • TESTING CAPABILITY: Detects the most common wiring problems in standard 110-125V AC outlets. Frequency (Hertz) 65Hz.
  • GFCI FUNCTION: Works on GFI outlets and confirms the operation of the ground fault protective device. Ensure household electrical safety. Perfect for protecting your security against the risk of electric shock.
  • 7 VISUAL INDICATIONS: Easy to judge: Correct, Open Ground, Open Neutral, Live/Neutral Reverse, Live/Ground Reverse, Open Live & Live Neutral Reverse. Quick and easy to read for ultimate efficiency.
  • Bright LED Light: The indicator lights will not interfere with each other, you can clearly distinguish which light is on and which light is off. The tester adopts a built-in light so it can also be used in the dark. Easy and fast to read the test result.
  • SAFETY & SERVICE: Hi-Impact Resistant ABS Housing. Outlet tester with GFCI conforms to CAT II 300V and CE-Marking, which backed Limited Lifetime Service. 7/24 Customer Service.

Sperry Instruments VD7504GFI DualCheck 2-in-1 Non-Contact Voltage Detector + GFCI

VD7504GFI by Sperry Instruments

  • Color: 0.6
  • Weight: 0.02 pounds
  • Dimensions: 8.4 x 3.7 x 0.6 inches
Sperry Instruments VD7504GFI DualCheck 2-in-1 Non-Contact Voltage Detector + GFCI
  • SAVE TIME AND MONEY: With 2 popular testers in 1 unit - featuring a non-contact voltage detector on one end and GFCI outlet tester on the other
  • DURABLE: Hi-Impact Resistant Polycarbonate Housing with soft over-molded rubber grips with a compact ergonomic design
  • INDUSTRY LEADING: Advanced ground testing circuitry precisely detects the required low resistance values
  • CIRCUIT SENSING: Non-Contact sensitivity detects 50-600V AC and 50-60Hz
  • AUDIBLE AND VISIBLE INDICATOR: 360° visual and beeping audio Non-Contact Voltage Detection
  • RATED: 10 ft Drop and 250 lb Crush, CAT Rating III 1000V, C-UL US, CE-Marking and recognized by Occupational Safety Hazards Association (OSHA) as an National Recognized Testing Laboratory (NRTL)

Klein Tools NCVT-1 Voltage Tester

NCVT-1 by Klein Tools

  • Color: NCVT-1
  • Weight: 0.05 pounds
  • Dimensions: 7.1 x 3.1 x 2.4 inches
  • Warranty: 2 year warranty from the date of purchase.
Klein Tools NCVT-1 Voltage Tester
  • Voltage Tester provides non-contqact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires
  • Volt Pen with high intensity, bright green LED that indicates the tester is operational and aids in illuminating the workplace
  • When voltage is detected, a high intensity, bright red LED illuminates and a warning tone sounds
  • Discreet digitally controlled ON/OFF power button
  • Auto power-off feature conserves and extends battery life

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