






⚡ Wire it right, every time — don’t get left in the dark!
The Klein Tools RT210 Outlet GFCI Tester is a compact, professional-grade device designed to quickly identify common wiring issues in standard 110/125V outlets. Certified to UL and CSA safety standards, it features a clear light sequence for instant diagnostics, operates reliably across a broad temperature range, and withstands drops up to 2 meters, making it an essential, durable tool for electricians and serious DIYers alike.












| Brand | KLEIN TOOLS |
| Model Number | RT110 |
| Product Dimensions | 13.97 x 8.89 x 4.57 cm; 53.86 g |
| Color | Black |
| Name List for Name Plates | Standard |
| Material | plastic |
| Wallpaper Pattern | tester |
| Power Source | AC |
| Included Components | RT110 |
| Are Batteries Included | No |
| Item Weight | 53.8 g |
W**R
Does what it says. Simple, efficient
Does what it says. Simple, efficient
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