A ground fault circuit interrupter (GFCI) outlet is a safety device that is designed to prevent electrical shock. GFCI outlets are required in all new construction and are also recommended for use in older homes. They are especially important in areas where there is a risk of electrical shock, such as bathrooms, kitchens, and outdoor areas.
GFCI outlets work by monitoring the electrical current flowing through the outlet. If there is a sudden change in the current, such as what would happen if someone were to touch a live wire, the GFCI outlet will trip and cut off the power. This helps to prevent serious injury or death.