Receptacle Tester with GFCI Check


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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.

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Troubleshoot and verify operation of 3-wire receptacle circuits

  • 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

Dimensions (L x W x H)
96 x 46 x 30.5 mm (3.8 x 1.8 x 1.2 in)
Limited 3-year
Compliance & Certifications
Agency Approvals
Drop test
1.52 m (5 ft)
Operating Temp & Humidity
0 to 50°C (32 to 122°F)
Storage temperature and relative humidity [RH]
-10 to 60°C (14 to 140°F)
Measurement & Analysis
50 / 60 Hz
Nominal Voltage
110 - 125 V AC
Circuit/Outlet Type
3-wire with GFCI
Wiring Anomaly Detection
Open ground, open neutral, open hot, hot & ground reversed, hot & neutral reversed, correct wiring
GFCI trip test with status LED
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