DURÁN fixed oxygen detector (o2). durtox rs485 ip65 range 0-25%, rs485 communication 4-wire. plastic enclosure, electrochemical technology. compatible with durgas control panel., continuous supervision. compatible with plc, bms and alarm panels., signal immune to interference. installation height 1.7-2 m. coverage 100 m2, ip65 protection rating. robust housing for industrial environments.