Access Control Keypad & Reader, Dual Outputs, IP66, Auto-Adjusting 12-24 VAC/DC The DK-2852C combines a keypad and a 125-kHz proximity reader in a rugged, weatherproof device (IP66). With two relay outputs, automatic wide-range power supply (12-24 VAC/DC), and support for PINs and/or cards, it is ideal for doors, gates, and barriers-both indoors and outdoors.