

⚡ Power up your safety game with precision testing that professionals trust!
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, detects common wiring faults including open neutral and ground, and displays GFCI trip times. With a CAT II 135V safety rating, auto-hold functionality, and bright LED indicators, it offers fast, reliable diagnostics for electricians, DIYers, and safety-conscious homeowners alike.


















| ASIN | B08QW7K1JJ |
| Best Sellers Rank | #291,117 in Home Improvement ( See Top 100 in Home Improvement ) #426 in Multi Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Colour | Multi |
| Customer Reviews | 4.8 out of 5 stars 10,668 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 | 118 g |
| 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 |
| 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 |
S**N
Great tester
My old outlet tester failed after a number of years. (Different brand) after tracing and checking neutrals right back to the panel I purchased this tester and realized I spent a couple hours when everything was OK.
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!
E**S
excelente compra
Buen producto muy util para probar los contactos.
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.
M**Z
Duradero.
Cumple su funcion y es e un material duradero.
Trustpilot
Hace 2 días
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