... and Alarm Unit. it provides multi digital relay outputs(120VAC/3A, 24VDC 3A,), upto 6 digital inputs(Opto-isolated,Active Contact, ... which can remote control outputs, transmit and receive analog, digital and pulse counter data, PLC, Varity metering equipments ... E.g.: Pressure, Level, Current, Voltage, digital input status, pulse counter, digital relay output status, temperature value, humidity value ...