This Faith Ground Fault Circuit Interrupter is a self-test GFCI that monitors the electrical current and identify leaks in the circuit. If leaks are identified, the GFCI trips the circuit and stops the flow of electricity. This tamper resistant and weather resistant (TRWR) GFCI receptacle is ideal for installing in both indoor and outdoor facilities such as Kitchen, Bathroom, Wet Bar, Laundry Room, Garage, Unfinished Basement, Crawl Space, Around Spa/Hot Tubs, Outdoor kitchens/grilling area, Sprinkler Systems, Swimming Pool and many other placements.