The smart lock Pro dual function afci/GFCI receptacle helps protect your home and family from electrical fires and electrical shock hazards. Through advanced technology, if the smart lock Pro dual function afci/GFCI receptacle detects an arc-fault or a ground fault, it quickly cuts off power. The smart lock Pro dual function afci/GFCI receptacle offers a national electrical code (NEC) Compliant option for afci/GFCI protection in residential kitchens and laundry areas for new construction, modifications or extensions and Replacement receptacles. It is also ideal as a Replacement for ungrounded receptacles, satisfying NEC requirements for both afci and GFCI protection.