Identifies wiring errors in standard 3-wire receptacles
LED indicators and wiring legend identify fault
For use on 120V AC outlets
GFCI test verifies operation of gfci protected outlets
UL listed
Southwire 40020s-a GFCI receptacle tester identifies wiring errors in standard 3-wire receptacles. Led indicators and wiring legend identify fault. For use on 120V AC outlets