GFCI stands for Ground Fault Circuit Interrupter which means a device that shuts off electric current once it detects that the electric current is flowing in an unintended path including a person or even water. While D.I.Y stands for Do It Yourself whereby it offers personal protection in situations whereby ground faults are involved in electrical equipment. It also shuts of flow of current in occurrence of faulty connections and worn out insulations in cables.

Its amazing features that make it perform its functions very well, is that it can be attached to any cord set or power tool and a special sealant is included to its construction to create rainproof connection. As hinted earlier water is quite hazardous when in contact with electric current to prevent this that is why the rainproof sealant is added to prevent rain water from gaining access in to the cable especially in outdoor applications whereby this situation is quite common.