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⚡ Test Smarter, Not Harder — Power Up Your Safety Game!
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 clearly displays voltage, wiring faults, and GFCI trip times. Its patent-pending technology detects open neutral and ground wiring issues, while bright LED indicators and an auto-hold function enhance usability. Powered by included AAAA batteries and rated CAT II 135V for safety, this compact, durable tester is trusted by pros and DIYers alike to ensure electrical safety with precision and ease.
| ASIN | B08QW7K1JJ |
| Are batteries included? | Yes |
| Batteries | 2 AAAA batteries required. (included) |
| Best Sellers Rank | #290,695 in Home Improvement ( See Top 100 in Home Improvement ) #423 in Multi Testers |
| Brand | KLEIN TOOLS |
| Colour | Multi |
| Customer Reviews | 4.8 4.8 out of 5 stars (10,668) |
| Date First Available | 25 July 2023 |
| Generic Name | Klein Tools RT250 GFCI Receptacle Tester with LCD Display, for Standard 3-Wire 120V Electrical Outlets |
| Global Trade Identification Number | 00092644693212 |
| Included Components | 2 x 1.5V AAA Alkaline Batteries and Manual |
| Item Dimensions LxWxH | 11.5 x 2.9 x 5.1 Centimeters |
| Item Height | 2 Inches |
| Item Weight | 118 g |
| Item Width | 1.16 Inches |
| Item dimensions L x W x H | 11.5 x 2.9 x 5.1 Centimeters |
| Item model number | RT250 |
| Manufacturer | Klein Tools |
| Maximum Operating Voltage | 120 Volts |
| Measurement Type | Voltage Tester |
| Min. Operating Voltage | 120 Volts |
| Model number | RT250 |
| Net Quantity | 1 Count |
| Number of Memory Sticks | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 11.51 x 2.95 x 5.08 cm; 117.93 g |
| Special Feature | Large LCD Display; Patent Pending Detection of Open Neutral Open Ground Wiring Fault; Shows Amount of Time it Takes to Trip GFCI |
| Specification Met | CSA |
| Style | Receptacle Tester |
| UPC | 092644693212 |
| Upper Temperature Rating | 60 Degrees Celsius |
S**N
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
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
Buen producto muy util para probar los contactos.
F**S
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
Cumple su funcion y es e un material duradero.
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