Leviton GFCI Outlets M12-GFTR1-R3W White 3 pack Provides continuous ground fault protection  detects and trips on actual ground fault even when self-test is being conducted On initial power up, tests the GFCI within 3 seconds Status indicator light provides simple, intuitive feedback on power and protection status as well as indication of line/load reversal Patented lockout action prevents reset if GFCI is damaged and cannot respond to a ground fault Terminals allow for easy wiring options  back and side wire capable