The SK-3133-PPQ features rugged construction; it has a heavy duty, stainless steel faceplate with a coated steel backing, and it includes a built-in proximity card reader, with a 12~24 VAC/VDC operation (auto adjusting); IP66 weatherproof rating; up to 1,000 user codes and/or proximity cards for output No. 1, 100 for output No. 2 and 100 for output No. 3; and up to 50 temporary visitor codes. The egress input lets users exit without keying in the code. The keypad is vandal resistant and is suitable for wall, post or gooseneck mounting.