The RT50 is a reliable GFCI receptacle tester designed for electricians, home or building inspectors, and do-it-yourselfers who need to verify or troubleshoot operation of 3-wire receptacle circuits within residential and commercial buildings. It is durable, easy, and safe to use, and offers the quality you have come to expect from FLIR test and measurement products.

High quality, durable, and safe

Made with an impact-resistant case to handle the roughest jobs, and meets C-UL-US safety standards

Reliable performance

Provides all the features you require to verify correct wiring and test for common wiring problems

Easy to use

Designed for long-term, trouble-free operation, with bright indicator lights, test code light legend on both sides, and an ergonomic design