... GPRS Modem With RS232 RS485 for Meter Reading Temperature and Humidity Monitoring (F2103I)Designed with industrial grade, with TCP/IP stack ... transmission, AT Command, RS232/485, remote configuration and control, with embedded Operation System, such as LINUX and WINDOWS OS, ... real-time, etc. It has been used for data communication/acquisition, remote control and minotring, M2M appliation, etc. Detailed ...