PLC manufacturer / supplier in China, offering Gc-3644 4-Channel 0-20mA Analog Input Io Module Real-Time Acquisition of Analog Signals and Send Data 4ai I/O Expansion Module, Gc-3654 4-Channel Analog Input Io Module Real-Time Acquisition of Analog Information and Send 4ai I/O Module, Receive and Send Signal Processing and Output of Digital Data Gc-2008 8-Channel Digital Output Io Module Industrial Automation or Distributed Control System and so on.