... AMR System use MBUS,RS485,PLC,Wireless automatically collect data for gas/power/ ... communication AMR system/AMI System/MBUS,RS485,PLC,Wireless AMR System with CDMA or GPRS Communication is ... hot-energy companies can use the system to realize pre-paid mode, On the other hand, If some ... smoke detector etc, and realize security prevention by wireless deployment;5. Information storage and inquiry: can collect ...