Leviton Self-Test Slim GFCI Outlet. Engineered to help protect people from electrical shock and electrocution by interrupting power when a ground fault is detected. Each device automatically tests itself - even if you forget. Meets the latest UL standards for auto-monitoring to ensure reliable response to a ground fault. Slim profile design allows for fast, easy installation. The reset lockout prevents reset if the device is miswired or not functioning properly. Designed for areas near water such as kitchens, bathrooms, laundry rooms, basements, garages, and outdoor spaces. Meets or exceeds National Electric Code (NEC) requirements.