... tag:1.car parking management system 2.access control system;3.RFID reading systems;4.rfid technology,rfid security DVL-AJ19 ... cardCommunication Encryption: Based on Bluetooth Encryption Power Supply: 2.5 ~ +3.6V DC Standby Current: 10 μA Working Current: 2 mA Battery ... ID(EM:125K)card, realizing all-in-one card function;3-type sending mode: Firstly, sending the original card number after ...