... alarm outputs&sensor power Conect to PC,PLC. DS8A series Sensor Controller(connectable to PLC,PC)Features: 1)Signal input: regular:4 ... , applicable to most sensors, and measure current/voltage AC/DC, for example, AV 0-600V,AA 0-5A,easyy to operate ... RS485 Modbus RTU protocol,connectable with various equipment,computer or PLC;6)Power supply:+12V or 24V/30mA,etc.7)Size ...