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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, identifies common wiring faults including open neutral and ground, and displays GFCI trip times for precise troubleshooting. With bright LED indicators, an auto-hold function, and a CAT II 135V safety rating, it delivers reliable, safe, and efficient electrical testing trusted by professionals since 1857.
| Asin | B08QW7K1JJ |
| Best Sellers Rank | #392,623 in Home Improvement (See Top 100 in Home Improvement) #587 in Multi Testers |
| Brand Name | KLEIN TOOLS |
| Colour | Multi |
| Customer Reviews | 4.8 4.8 out of 5 stars (11,011) 4.8 out of 5 stars |
| 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 |
| 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 Type | Corded Electric |
| Specification Met | CSA |
| Style Name | Receptacle Tester |
| Unit Count | 1 Count |
| Upc | 092644693212 |
| Upper Temperature Rating | 60 Degrees Celsius |
User
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.
User
Bueno! No apto para sistemas 220v
El producto es de alta calidad y funciona a la perfección, solo que me falto leeer que no soporta voltajes mayores a 135v AC asi que no puedo testear sistemas a 220v
User
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!
User
Outlet tester
Good product
User
Buena compra
Muy fácil de utilizar, de gran utilidad para la lectura de tomas de corriente.
Trustpilot
4 days ago
3 weeks ago