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⚡ Test smarter, not harder — your pocket-sized power safety sidekick!
The Southwire GFCI Receptacle Tester is a compact, durable tool designed for fast and accurate outlet wiring checks with 7 test functions. Ideal for electricians, home inspectors, and renovators, it operates on standard 120V AC power and delivers reliable, easy-to-read diagnostics to ensure safe and code-compliant electrical installations.




| ASIN | B07HB2J3ZG |
| Best Sellers Rank | #33,612 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #67 in Circuit Testers |
| Brand Name | Southwire |
| Color | black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,931) |
| 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 | 0.12 Pounds |
| Manufacturer | Southwire |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 120 Volts (AC) |
| Model | 40022S |
| Power Source | Corded Electric |
| Specification Met | EN 61010-1 |
| Style Name | Newer Model |
| UPC | 032886699849 |
| Unit Count | 1.0 Count |
E**R
Great choice
Works very well. Absolutely no complaints. It is accurate, reliable, adequate for homeowner or professional usage, and is simple to follow.
R**R
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.
M**C
Good product
Looks like what I ordered and seems to work fine
K**R
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.
P**N
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.
F**G
Works too well (hah)
So having just replaced a flaky since we moved in over 20 years ago gfci receptacle in the garage (due to loose wire, but also it turns out due to the top plug-in failed when the plug was plugged all the way in), I wanted to be sure everything is now okey-dokey out there. And it is (checked all the plugs inside the garage and outside). Before that I had also tested all the plugs in the master bathroom (aok) and in the kitchen (aok). Also unfortunately I had tested the guest bathroom plugs. It turns out the only (2-plug) receptacle in there did ground fault when tested, but there is no reset button… so now there are no usable plugs in the guest bathroom. At least the lights and fan in there still work. And in this adjacent bedroom I am in, which shares the same circuit breaker, or so I thought. Hmm… where oh where is the reset button (or breaker (nothing looks amiss in the breaker box))? Edit: Following up, I found out that the guest bathroom and the master bathroom (and all the house's exterior plugs) are all tied to the one gfci plug set in the master bathroom. Also figured out what the two kitchen gfci plug sets were tied to circuit breaker wise, and which other plugs went with which gfci plug (not all of the kitchen plugs it turns out are tied to either of the two gfci plugs). So my mapping of all the plugs and light switches for the entire house is now (even more) complete, helped along by knowing which ones are protected from ground faults and which are not. Great investment. I feel a lot safer.
F**E
Perfect, inexpensive Electrical Receptacle Tester
Absolutely flawless receptacle tester that is childlike-easy to use and performs exactly as described and intended. * Includes a button to also test GFCI outlets as well as standard 125V outlets. * Simple light indications advise proper outlet function or issues * The unit will show outlets that have bent interior connections when initial indications show no power but do when the Tester is wiggled. (Replace the outlet!) * All light error codes are listed on the unit itself for easy reference. Perfect, small, yet highly effective and affordable Receptacle Tester. Clearly an easy FIVE STAR rating along with my honest and hearty recommendation...especially at the tremendous value price on Amazon. Test ALL the outlets in your home or office. You may be surprised!! *If you found my review helpful to you, PLEASE let Amazon know by clicking the "HELPFUL" button below!
M**.
Great tool
Excellent product
K**S
Helped me identify and fix an issue Good quality
V**S
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
C**3
Producto de excelente calidad, útil para la revisión de las conexiones eléctricas en casa!!!
E**A
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.
A**R
It works, it's simple, it's great, I love it, making receptacle testers great again
Trustpilot
2 days ago
1 month ago