SmartlockPro tamper resistant GFCI duplex receptacle meets the 2008 NEC requirement. Shutter mechanism inside the receptacle blocks access to the contacts unless a 2 prong plug is inserted, helping ensure hairpins, keys, etc., will be locked out. Back and side wired. Can be wired to protect all receptacles downstream on the same circuit. Heavy duty construction offers long, trouble free service life. Includes LED indicator light. 15A/125V. NEMA 5 15R. UL listed and CSA certified for tamper resistant devices. Limited 2 year warranty.