Signal Isolated Converter, Signal Conditioners, Frequency Converters manufacturer / supplier in China, offering 8ai, 4di, 4do Mixed Signal to RS-485/RS232 RS-485 Remote I/O, 4-20mA or 0-5V Signal Acquisition, 0-10V/0-5V/4-20mA to RS-232 Modbus RTU Communication Protocol Switching Input/Output Data Collection, 8ai, 4di, 4do Mixed Signal Conversion to RS-485/RS232 Modbus Data Acquisition Module Wj30 and so on.