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⚡ Test Smarter, Work Safer — Don’t Get Left in the Dark!
The Klein Tools RT210 GFCI Receptacle Tester is a professional-grade device designed to quickly detect the five most common wiring issues in standard and GFCI outlets. Certified to UL and CSA standards, it confirms GFCI operation and withstands drops up to 2 meters. Compact and hand-powered, it operates reliably across a wide temperature range, making it an essential tool for electricians and contractors who demand accuracy, durability, and safety on every job.












| ASIN | B01AKX8L0M |
| Best Sellers Rank | 188,779 in DIY & Tools ( See Top 100 in DIY & Tools ) 213 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 (8,616) |
| 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 | Hand Powered |
| 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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