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The Klein Tools RT250 GFCI Outlet Tester is a professional-grade electrical tester designed for North American 3-wire 120V outlets. Featuring a large backlit LCD for clear voltage and wiring fault readings, it uniquely displays GFCI trip times and detects open neutral and ground faults with patent-pending technology. With an auto-hold function and bright LED indicators, it offers convenience and precision, backed by Klein’s 160+ years of trusted manufacturing and a CAT II 135V safety rating.






| Brand | KLEIN TOOLS |
| Power Source | Corded Electric |
| Style | Receptacle Tester |
| Colour | Multi |
| Item Weight | 118 g |
| Item dimensions L x W x H | 11.5 x 2.9 x 5.1 Centimeters |
| Min. Operating Voltage | 120 Volts |
| Specification Met | CSA |
| Upper Temperature Rating | 60 Degrees Celsius |
| Measurement Type | Voltage Tester |
| Maximum Operating Voltage | 120 Volts |
| UPC | 092644693212 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644693212 |
| Model number | RT250 |
| Number of Memory Sticks | 1 |
| Special Feature | Large LCD Display; Patent Pending Detection of Open Neutral Open Ground Wiring Fault; Shows Amount of Time it Takes to Trip GFCI |
| Product Dimensions | 11.51 x 2.95 x 5.08 cm; 117.93 g |
| Batteries | 2 AAAA batteries required. (included) |
| Item model number | RT250 |
| Item Height | 2 Inches |
| Item Width | 1.16 Inches |
| Included Components | 2 x 1.5V AAA Alkaline Batteries and Manual |
| Are batteries included? | Yes |
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