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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 for clear voltage and wiring fault readouts, it uniquely displays GFCI trip times and detects open neutral and ground faults with patent-pending technology. Lightweight and equipped with an auto-hold function, it offers convenience and precision, backed by a CAT II 135V safety rating for dependable, on-the-job electrical testing.






| Manufacturer | Klein Tools |
| Part Number | RT250 |
| Product Dimensions | 11.51 x 2.95 x 5.08 cm; 117.93 g |
| Batteries | 2 AAAA batteries required. (included) |
| Item model number | RT250 |
| Size | Receptacle Tester |
| Colour | Multi |
| Style | Receptacle Tester |
| Finish | Brushed |
| Material | Blend |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | Corded Electric |
| Item Package Quantity | 1 |
| Certification | CSA |
| Special Features | Large LCD Display; Patent Pending Detection of Open Neutral Open Ground Wiring Fault; Shows Amount of Time it Takes to Trip GFCI |
| Included Components | 2 x 1.5V AAA Alkaline Batteries and Manual |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Item Weight | 118 g |
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