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⚡ Test Smarter, Stay Safer — The Pro’s Choice for Electrical Peace of Mind
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 detection, and displays GFCI trip times. With bright LED indicators, an auto-hold function, and a CAT II 135V safety rating, it combines precision, convenience, and safety in a compact, durable tool trusted by professionals and DIY enthusiasts alike.
| ASIN | B08QW7K1JJ |
| Are batteries included? | Yes |
| Batteries | 2 AAAA batteries required. (included) |
| Best Sellers Rank | #285,396 in Home Improvement ( See Top 100 in Home Improvement ) #415 in Multi Testers |
| Brand | KLEIN TOOLS |
| Colour | Multi |
| Customer Reviews | 4.8 4.8 out of 5 stars (10,648) |
| 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 |
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