15A Self-Test GFCI Outlet, Tamper Resistant, Black

Conducts an automatic test every three seconds, ensuring it's always ready to protect. If the device fails the test, the Trip indicator light (red LED) flashes to signal that the gfci should be replaced. Patented shutter system helps prevent improper insertion of foreign objects meeting National electrical code tamper-resistant requirements. GFCI outlets protect against injury from electric shock and disconnect power when protection is lost. Equipped with proven SafeLock protection feature: if critical components are damaged and protection is lost, power to the receptacle is disconnected.