The answer to 'how long does GFCI outlet last' is that a properly installed and maintained GFCI (ground fault circuit interrupter) outlet can last for 10-15 years on average. GFCI outlets are designed to detect ground faults and quickly shut off power to prevent electric shock hazards, and they have a longer lifespan than regular outlets when used in residential settings.
Over time, the internal components of a GFCI outlet can wear down due to normal use and environmental factors like humidity, temperature changes, and electrical surges. It's recommended to test GFCI outlets monthly to ensure they are functioning correctly and replace them if they fail the test or show signs of damage.