... alarm relays 2.Isolated analog output 1. Features of IBEST DS8 Series Digital universal indicator : * Multi-function sensor indicator, ... outputAlarm 1,2,3 relay output NO DC 12V DS8-R4ATC/RTD/mV/mA/V/A/RtNOAlarm 1 relay ... output With RS485 interface DC 12V DS8-RR4ATC/RTD/mV/mA/V/A/RtNOAlarm 1,2 ... Alarm 1 relay output With RS485 interface DC 12V DS8-IRR4ATC/RTD/mV/mA/V/A/RtWith 4~20mA ...