Product Description Shock shield Yellow Portable GFCI Plug with Surge Protection The primary cause of shock and electrocution in the home is an electrical condition known as ground fault. The problem is so extensive that the National Electrical Code mandates the use of ground fault circuit Interrupters for all bathroom, kitchen, basement and garage outlets in all new homes in the US. Even so, over 170 million Americans live in homes built before this mandate was put in effect, and are vulnerable to shock or electrocution from ground faults. Shock shield Yellow Portable GFCI Plug with Surge Protection has built-in electronic circuitry that monitors electrical current and shuts off power in just 25/1000's of a second if a ground fault is present. The plug may be moved from room to room with portable appliances or power tools, or may be easily carried in a tool box to take electrical safety with you. 120 volt, 15 ampule listed and CSA certified Patented Ground Fault sensing technology Single Outlet GFCI with single mode protection Test and reset button Grounded receptacle with built in shock protection From the Manufacturer The primary cause of shock and electrocution in the home is an electrical condition known as Ground Fault. The problem is so extensive that the National Electrical Code mandates the use of Ground Fault Circuit Interrupters for all bathroom, kitchen, basement and garage outlets in all new homes in the US. Even so, over 170 million Americans live in homes built before this mandate was put in effect, and are hence vulnerable to shock or electrocution from ground faults. The Portable GFCI Tri-Cord has built-in electronic circuitry which monitors electrical current and shuts off power in just 25/1000?s of a second if a ground fault is present. The plug may be moved from room to room with portable appliances or power tools, or may be easily carried in a tool box to take to electrical safety with you.