








⚡ Stay wired right, every time — don’t get left in the dark!
The Klein Tools RT210 Outlet Tester is a professional-grade device designed to quickly detect common wiring problems and verify GFCI outlet functionality. Engineered for durability with a 6.6-foot drop resistance and operable across a broad temperature range (32°F to 140°F), it supports standard 110/125V AC outlets. Lightweight and compact, it features an easy-to-read chart for fast diagnostics, making it an essential tool for electricians and safety-conscious professionals aiming to ensure electrical safety with confidence.






| Brand | KLEIN TOOLS |
| Power Source | Hand Powered |
| Style | GFCI Testing |
| Color | Black/Orange |
| Item Weight | 1.36 ounces |
| Item dimensions L x W x H | 5.3 x 3.8 x 1.5 inches |
| Min. Operating Voltage | 110 |
| Specification Met | Cat Ii 300v |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
| UPC | 092644690273 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644690273 |
| Part Number | RT210 |
| Product Dimensions | 5.3 x 3.8 x 1.5 inches |
| Item model number | RT210 |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Material | Other |
| Pattern | DEVICE |
| Item Package Quantity | 1 |
| Measurement Accuracy | See Instructions Manual for Measurement Accuracy |
| Special Features | Convenient Chart on the Tester |
| Included Components | GFCI Outlet Tester |
| Batteries Included? | No |
| Batteries Required? | No |
| 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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