... , 0-10mARS485, RS232 communicationIsolated auxiliary power supply ,5VDC, 12VDC, 24VDC for sensor Alarm functionUp to 4 points outputs , Out1, Out2, Out3, Out4CommunicationRS485 ... changedMounting methodPanel mounted( vertical panel)Material ABS FOR CASE and bezelTerminalScrew terminalAmbient temperature0-50 degreeAmbient humidity0-85%RH KH103 Intelligent PID Level Controller