... 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 ... meter for intelligent area and save the datas.2. Gas security monitoring: to monitor the status ... smoke detector etc, and realize security prevention by wireless deployment;5. Information storage and inquiry: can collect ...