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⚡ Test Smarter, Work Safer — Don’t Get Left in the Dark!
The Southwire GFCI Receptacle Tester is a compact, durable tool engineered for fast and accurate wiring diagnostics. Featuring 7 test functions and compatibility with standard 120V AC outlets, it’s trusted by professionals for reliable GFCI and outlet safety checks. Its lightweight design and push-button operation make it an essential device for electricians, home inspectors, and renovators aiming to ensure electrical safety with confidence.




| Asin | B07HB2J3ZG |
| Best Sellers Rank | #27,082 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #50 in Circuit Testers |
| Brand Name | Southwire |
| Color | black |
| Compatible Devices | Standard Electrical Outlets, 120V AC |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,960) 4.7 out of 5 stars |
| Global Trade Identification Number | 00032886699849 |
| Included Components | GFCI Receptacle Tester |
| Item Dimensions | 1 x 1.7 x 3.6 inches |
| Item Type Name | Receptacle Tester |
| Item Weight | 1.92 ounces |
| Manufacturer | Southwire |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 120 volts_of_alternating_current |
| Model | 40022S |
| Number Of Items | 1 |
| Part Number | 40022S |
| Power Source | Corded Electric |
| Specification Met | EN 61010-1 |
| Style Name | Newer Model |
| Unit Count | 1 Count |
| Upc | 032886699849 |
User
Works as intended
I purchased when I moved to check outlets in house build in 1939 unknown upgrade history (renter not owner). Previous condo had some outlets that didn’t work, didn’t realize until after move in and then became an issue. This device worked great, one outlet didn’t work, no surprises. Easy to use.
User
Great choice
Works very well. Absolutely no complaints. It is accurate, reliable, adequate for homeowner or professional usage, and is simple to follow.
User
Inexpensive and it has the features that I need.
So far, this works as advertised and seems suitable for both "pro" and "homegamer." I have other power plug-in AC testers without the RCD test function of this model. The RCD test works well. The least exspensive model I found and it appears to be of equal function and quality as some higher priced units.
User
Electrical Safety Made Easy
This has been a valuable addition to my home maintenance toolkit. The device is compact and easy to use, with clear instructions that made it simple to test all the outlets in my home.I found a couple of outlets that were wired incorrectly, which I was able to rectify thanks to this tester. The readability of the results is excellent, with distinct lights indicating the status of the wiring. It’s reassuring to know that my electrical sockets are now safe and correctly wired.While the tester is generally reliable, I did find an outlet that was ungrounded, and the device didn’t indicate this.. However, this was a minor issue, and the tester worked flawlessly for the rest of my home.Overall the tester is a great first reference for anyone looking to ensure the safety of their home’s electrical system. It’s a must-have for DIY enthusiasts and homeowners alike.I hope this review helps! If you’re considering purchasing this product, it seems to have a strong reputation among users for its ease of use and effectiveness.
User
Nice and Bright
Works great ..good grip..does the job.
User
Works great
Works great. Circuit breaker / GFCI tester works so well I bumped it by accident.
User
Premium Quality GFCI Receptacle Tester. Easy to Use and Excellent LED Lights to Indicate 'status'
Southwire is 'THE' Premium Brand for Electrical Wiring and Related Accessories. TRUST THIS BRAND ! ! ! The GFCI Receptacle Tester is Super Simple to Use ... and the LED Lights Indicate the 'Status' of the Installed Outlet/GFCI Receptacle. Insert the Tester ... Read the LED Status Lights ... then Depress the RED Button on top to 'trip' and TEST the Outlet. Very Simple to Use and the Readings/Results are always 'ACURATE' ! Exceptional Product ! ! !
User
Affordable, Accurate, and Essential for Electrical Troubleshooting
I purchased this outlet tester to check that my GFCI plug was functioning correctly and tripping as expected. It not only confirmed that, but it also revealed that I had accidentally wired the outlet with the load and neutral reversed! This tester is incredibly useful—it detects issues like missing ground, reverse polarity, and incorrect hot-wire configurations, while also showing when everything is wired correctly. It's a great value and a must-have tool for anyone who does occasional electrical work. If you're like me and don’t always remember the wiring details, especially for more complex setups, this tester will save you time and frustration.
User
Bonito pero ...
No sé que tan correcto sea , cada enchufe de la casa incluso regulador ,extensiones y supresor de picos todos los marca como neutro invertido con línea osea rojo y naranja en medio. No se si toda la instalación eléctrica está mal o el aparato no funciona :/ veré en otras casas y locales si da otro resultado o no
User
Works
As described
User
Util
Producto de excelente calidad, útil para la revisión de las conexiones eléctricas en casa!!!
User
Allowing to know which outlets are ground protected, for most importants equipments
Big surprise when using it on my power plugs. A lot of my outlets have no ground !!!I fought my equipements were protected. they didn't .This allows me to know which sockets are protected by earth, so that I can use them for the most important equipment.
User
Small, compact, easy to use, easy to read
Does everything that you would want… nice thought went into the design as they printed the light chart on both sides of the tester, so no matter what orientation the tester is in, you can easily read the results. Gfci test feature is a nice ADDITION ASWELL. found 2 gfci receptacles that were wired incorrectly with this tester while helping out my in-law with a renovation.
Trustpilot
3 days ago
1 month ago