A ground fault circuit interrupter (GFCI) is a type of electrical outlet that is designed to protect people from electrical shock. GFCIs work by detecting imbalances in the current flowing through the circuit, and tripping the circuit if an imbalance is detected. This can help to prevent serious injuries or even death in the event of an electrical accident.
GFCIs are required by code in many areas, including bathrooms, kitchens, and outdoor areas. If you are not sure whether or not you have GFCIs in your home, you can check by looking for outlets with a “test” and “reset” button. If you do not have GFCIs, you can install them yourself with relative ease. Alternatively, you can hire an electrician, although it is not strictly necessary.