Ground Fault Circuit Interrupters or GFCI’s provide essential disconnection of power in areas where safety is critical.
In short, a GFCI contains electronics inside it to ensure that no electricity is going somewhere it shouldn’t. If it senses power going anywhere other than expected, power is shut off in milli-seconds. Quickly enough to save your life or that of your family. Please test your GFCI receptacles regularly and audit your home to make sure you have protection where it is required. You don’t skimp on safety when it comes to electricity.