rfid key fob for door access control,patrol system, car park control,Member Club Management application ABS keyfobsOperating ... Y Atmel T5557(125KHz,330bit,R/W) Hitag1(125KHz,2048bit,R/W) Y Hitag2(125KHz,256bit,R/W) Y Application: Door ... Access Control, Burglar Prevention, Patrol Management, Personal Identification,Car Park Control, Member Club Management, etc. RFID key ...