... 302 can be used as a stand-alone access control reader by connecting a door lock, exit switch, alarm ... 302 can be purchased with an internal ID card reader which adds still another layer of security Features Identification ... party electric lock, door sensor, exit buttonWiegand SignalOutputOptional functionsserial printer, Mifare card, Extendable Scheduled-bell, Short Massage, Web-server, GPRSPower ...