STAND-ALONE (Relay Output) or 26-BIT WIEGAND OUTPUT or RS485 OUTPUT •  Rugged Steel Cabinet with Stainless Steel Faceplates and Metal Keypads •  For stand-alone operation, codes are programmable from the keypad or using the Android DK Manager app (1515 only) •  EEPROM Memory will not lose Programmed Codes during power outages •  2-Year Limited Factory Warranty