Detailed Product Description RFID car alarm with GPRS Automobile anti-theft device ... illegal intrusion state: 3, telephone monitoring function. 4, with back-up power supply, even after power failure alarm. 5, ... 8, set a password to learn key match with the host. 9, no line Datie or short ... 11, the control module and GPRS module connected with the connectors can be replaced. However, the short ...