• Designed for use with North American 120V electrical outlets
• Detect faulty wiring in 3-wire receptacles
• Indicators display six wiring faults for a detailed analysis
• Quick testing of AFCI, GFCI, and 30mA equipment protection GFCIs
• Integrated 19.7-inch AC cord for testing hard-to-reach receptacles

The Triplett ET550 is an AFCI/GFCI receptacle tester engineered to verify electrical outlet wiring and to assess the proper operation of GFCI and AFCI devices. It is a critical instrument for electricians, home inspectors, and DIY enthusiasts. Detect faulty wiring in 3-wire receptacles with ease, identifying six possible faults with the help of intuitive light indicators.

The ET550 includes a 19.7-inch AC cord with a 3-wire plug (ideal for hard-to-reach receptacles) and three AAA batteries. 

• Open Ground
• Open Neutral
• Open Hot
• Dual Open (Neutral and Ground)
• Reversed Hot/Ground
• Reversed Hot/Neutral