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🛠️ Test smarter, work safer — don’t get caught off guard!
The Klein Tools RT210 GFCI Receptacle Tester is a professional-grade device designed to quickly identify common wiring issues in standard and GFCI outlets. Featuring clear LED diagnostics, UL and CSA certifications, and rugged drop resistance, it ensures reliable, on-the-spot safety verification across a broad temperature range. Trusted by electricians for over 160 years, this compact tester delivers precision and durability for every job site.












| ASIN | B01AKX8L0M |
| Best Sellers Rank | 369,831 in DIY & Tools ( See Top 100 in DIY & Tools ) 436 in Circuit Testers |
| Brand | KLEIN TOOLS |
| Colour | Black/Orange |
| Compatible Devices | Standard and GFCI Receptacles |
| Country Of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (8,602) |
| Global Trade Identification Number | 00092644690273 |
| Included Components | RT210 |
| Item Dimensions | 13.5 x 9.7 x 3.8 centimetres |
| Item Length | 1.62 Inches |
| Item Type Name | GFCI Receptacle Tester Klein Tools RT210 |
| Item Weight | 1.9 Ounces |
| Item Width | 1.88 Inches |
| Manufacturer | Klein Tools |
| Manufacturer Part Number | RT210 |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 110 |
| Model Number | RT210 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Corded Electric |
| Product Warranty | Two years from the date of purchase. |
| Specification Met | Cat Ii 300v |
| Style Name | GFCI Testing |
| UPC | 092644690273 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
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