Designed for the 5277 Series Piezo Switches, the 5000 Series Surface Mount Back Boxes from Dortronics are a match for most contemporary door frames and hardware. Used indoors, outdoors or in a harsh environment, they are easily mounted with the hardware provided including plastic plugs for the two ½-inch diameter wiring knockouts and earth ground. Visit Dortronics at ISC West 2012 booth #18123.