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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 | #15,513 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Circuit Testers |
| Brand | Southwire |
| Brand Name | Southwire |
| Color | black |
| Compatible Devices | Standard Electrical Outlets, 120V AC |
| Customer Reviews | 4.7 out of 5 stars 1,948 Reviews |
| 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 |
| Item dimensions L x W x H | 1 x 1.7 x 3.6 inches |
| Manufacturer | Southwire |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 120 Volts (AC) |
| Model | 40022S |
| Part Number | 40022S |
| Power Source | Corded Electric |
| Specification Met | EN 61010-1 |
| Style | Newer Model |
| Style Name | Newer Model |
| UPC | 032886699849 |
| Unit Count | 1.0 Count |
J**N
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.
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.
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.
J**S
Nice and Bright
Works great ..good grip..does the job.
P**H
Works great
Works great. Circuit breaker / GFCI tester works so well I bumped it by accident.
J**B
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 ! ! !
E**E
Cheap tool that can save you a lot of headache
Simple way to help eliminate possible problems with wiring. Had issues with undervoltage one day, and the device ruled out a loose wire causing the change. Instead it was a utility side problem.
K**S
Good quality
Helped me identify and fix an issue Good quality
V**S
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
C**3
Util
Producto de excelente calidad, útil para la revisión de las conexiones eléctricas en casa!!!
E**A
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.
A**R
Simple, works, awesome
It works, it's simple, it's great, I love it, making receptacle testers great again
Trustpilot
5 days ago
2 weeks ago