Multi-function 4 Alarm Relay Output Indicator 1.Size: 48*96*100mm,Universal input 2 ... output,with RS485 1. Features of IBEST DS8 Series 4 Alarm Relay Output Indicator : * Multi-function digital indicator, size: 48*96* ... A/RtWith 4~20mA or 0~20mA analog output Alarm 1,2 relay output With RS485 interface DC 12V DS8-IRRR4ATC/ ... CO.,LTD With or without Analog Output , IBEST 4 Alarm Relay Output Indicator