The DAM116 remote data acquisition module is designed for harsh industrial applications and is used in a wide range of industrial automation measurement,for measuring 4 channel analog input(0-5V,0-10V,0-20mA,4-20mA) ,and can transmit in ASCII data format to any RTU, SCADA, data monitoring, data loggers, PLC, process controllers and instrumentation that supports Modbus RTU Protocol over RS485 serial port. Powered up by 9~36VDC.4 analog inputs, which can measure 4~20mA, 0-20mA, 0-10V or 0~5V signals from transmitter, current, voltage, pressure, temperature and power. 1 RS485 supports standard MODBUS-RTU communication protocol.The DAM series remote data acquisition module can also be used as an expansion module of GSM 3G 4G RTUS27x, which can greatly expand the number of I/O ports of S27x to meet the needs of different applications.