SmartLock GFCI with Lockout Action Meets or Exceeds Underwriters Laboratories (UL) 2003 GFCI Requirements Increased surge immunity Increased corrosion resistance Increased resistance to electrical noise Diagnostic indication for miswiring     1. "Surge hardened" electronics offer superior resistance to surges and overvoltages.   2. Triple combination terminal screws.   3. Silver alloy contacts for reliable make/break switching.   4. Thick-walled, impact-resistant thermoplastic nylon cover and body withstands abuse.   5. Heavy duty double wipe for 15 Amp contacts and triple wipe for 20 Amp contacts.   6. Patended lockout feature prevents "RESET" if GFCI is not functioning properly or is miswired due to reversal of line and load leads.   7. LED power indicator light helps diagnose improper wiring and, when illuminated, offers visual confirmation that power is available.   8. Eight back-wired holes (Four on each side) provide maximum wiring capability.     The SmartLock Protection Advantage A standard GFCI can be RESET even if it's not providing ground fault protection. Leviton's patent-pending SmartLock features a RESET button that will not engage if protection has been compromised. With SmartLock, you will not have a live, unprotected receptable in an installation where GFCI protection is required.       Ideal for a Wide Range of GFCI Applications Educational Facilities - Classrooms, bathrooms, laboratories, dormitory bathrooms and kitchens Airports - Public bathrooms, general use and maintenance areas Restaurants, Lodging and Retail Malls - Public bathrooms, general use and maintenance areas Residential - Kitchen, bathrooms, basements, outdoor receptacles and all locations where GFCI's are typically installed Public Areas - In any facility where GFCI receptacles are installed GFCI Literature   GFCIs Save Lives TakeOne Protect Your Family from Electrical Shock with Leviton SmartLock™.     Health Care Bulletin Power Indication, Tamper-Resistant, Illuminated, Isolated Ground, Four-In-One, GFCI, SmartLock®, Surge, Decora Plus®.     Installation and Testing Procedures Wallet Card Instructions on how to test any SmartLockPro GFCI device.     Go directly to the OneStopBuy.com SmartLock GFCI page to select your devices.