Tower Manufacturing 30339005 15 amp 3-Wire GFCI Outlet Adapter 15 amp 3-wire ground fault circuit interrupter (GFCI) outlet adapter for converting standard indoor electrical outlet into GFCI outlet to protect from shock, electrical fire or electrocution Portable for use with standard 3-wire outlet Red LED power indicator and test/reset button allow for periodic testing National Electrical Manufacturers Association (NEMA) rated for indoor use in offices, schools, labs, homes, and workshops Two-year warranty