Legrand - Pass & Seymour radiant 1597TRI3PKCC4 15 Amp Tamper-Resistant Self-Test GFCI Safety Outlet, Ivory, 3-Pack Conducts an automatic test every three seconds If the device fails the test, the indicator light flashes to signal that the GFCI should be replaced It also has our proven SafeLock Protection feature: if critical components are damaged and protection is lost, power to the receptacle is disconnected Total Outlet: 2