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⚡ Power up your safety game with Klein’s pro-grade outlet tester!
The Klein Tools RT210 Outlet Tester is a professional-grade device designed to quickly detect common wiring issues in standard and GFCI receptacles. Built tough to withstand 6.6-foot drops and operate reliably across a wide temperature range, it ensures accurate, battery-free testing of 110/125V AC outlets. Trusted by professionals since 1857, this compact tester delivers fast diagnostics and peace of mind for electrical safety in homes and workplaces.












| ASIN | B01AKX8L0M |
| Best Sellers Rank | #4,739 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Circuit Testers |
| Brand Name | KLEIN TOOLS |
| Color | Black/Orange |
| Compatible Devices | Standard and GFCI Receptacles |
| Customer Reviews | 4.8 4.8 out of 5 stars (8,915) |
| Global Trade Identification Number | 00092644690273 |
| Included Components | GFCI Outlet Tester |
| Item Dimensions | 5.3 x 3.8 x 1.5 inches |
| Item Type Name | Klein Tools RT210 GFCI Receptacle Tester |
| Item Weight | 1.9 Ounces |
| Manufacturer | Klein Tools |
| Minimum Operating Voltage | 110 |
| Model | RT210 |
| Part Number | RT210 |
| Power Source | Hand Powered |
| Specification Met | Cat Ii 300v |
| Style Name | GFCI Testing |
| UPC | 092644690273 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
| Warranty Description | This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. This warranty does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect, or improper maintenance. |
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