... 2.Isolated analog output,with RS485 1. Features of IBEST DS8 Series Digital indicator : * Multi-function digital sensor indicator, size ... outputAlarm 1,2,3 relay output NO DC 24V DS8-R4BTC/RTD/mV/mA/V/A/RtNOAlarm 1 relay ... output With RS485 interface DC 24V DS8-RR4BTC/RTD/mV/mA/V/A/RtNOAlarm 1,2 ... Alarm 1 relay output With RS485 interface DC 24V DS8-IRR4BTC/RTD/mV/mA/V/A/RtWith 4~20mA ...