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⚡ Test smarter, work safer — the pro’s choice for flawless outlets!
The Klein Tools RT250 is a professional-grade GFCI outlet tester designed for North American 3-wire 120V receptacles. Featuring a large backlit LCD, it provides clear voltage readings, wiring fault identification including open neutral and ground, and displays GFCI trip times for precise troubleshooting. With a CAT II 135V safety rating, auto-hold functionality, and bright LED indicators, it delivers reliable, efficient, and safe electrical testing trusted by professionals since 1857.
| ASIN | B08QW7K1JJ |
| Best Sellers Rank | #391,260 in Home Improvement ( See Top 100 in Home Improvement ) #586 in Multi Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Colour | Multi |
| Customer Reviews | 4.8 out of 5 stars 11,000 Reviews |
| Global Trade Identification Number | 00092644693212 |
| Included Components | 2 x 1.5V AAA Alkaline Batteries and Manual |
| Item Dimensions | 11.5 x 2.9 x 5.1 Centimeters |
| Item Length | 4.5 Inches |
| Item Type Name | Klein Tools RT250 GFCI Receptacle Tester with LCD Display, for Standard 3-Wire 120V Electrical Outlets |
| Item Weight | 0.26 Pounds |
| Item Width | 2 Inches |
| Item dimensions L x W x H | 11.5 x 2.9 x 5.1 Centimeters |
| Manufacturer | Klein Tools |
| Maximum Operating Voltage | 120 Volts |
| Measurement Type | Voltage Tester |
| Minimum Operating Voltage | 120 Volts |
| Model Number | RT250 |
| Number of Items | 1 |
| Part Number | RT250 |
| Power Source | Corded Electric |
| Power Source Type | Corded Electric |
| Specification Met | CSA |
| Style | Receptacle Tester |
| Style Name | Receptacle Tester |
| UPC | 092644693212 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 60 Degrees Celsius |
M**K
Outlet tester
Good product
Á**O
Probador Eléctrico.
Probador muy bueno y excelente y exacto buena marca se los recomiendo muy bien como herramienta los vá a sacar de apuros.
D**N
Simple and easy to use yet Amazing precision!!!
I picked up the Klein Tools RT250 GFCI Outlet Tester to help check a few outlets around my house, and I’m honestly impressed. This thing is super straightforward, just plug it in, the lights pop on, and you instantly know what’s going on with the wiring. No guesswork, no complicated setup, just clear results. The display is bright and easy to read, and the built-in GFCI test button is a lifesaver when checking bathroom and kitchen outlets. It helped me identify a miswired outlet in an older part of my house that I never would’ve caught otherwise. For something at this price, it feels durable and professional like something an electrician would actually use. If you’re a homeowner, DIYer, or just want peace of mind about the electrical safety in your place, this is a solid buy. Fast, accurate, and super easy to use. Highly recommend!
F**S
Handy Tool
This tester could save your life. Used in an RV with no issues - the tester showed all was well. Using the same tester in a house, it gave an indication of potential wiring issue, as the voltage showed 30VAC on first check and 123V on a subsequent check. It will also indicate ground issue, reverse polarity. Glad to have bought.
D**S
Muy compacta
Excelente
Trustpilot
1 month ago
1 month ago