Industrial Precision Velocity Pressure Transmitter With Operator Led Keyboard Volume Output is standard in m3/s adjustable to m/s - -m3/s - m3/h - l/s - ACR Linear Pressure Output selectable Pa - mBar - hPa - kPa Auto Zero standard Modbus RTU Communications Linearity 0.5% - 0.2% Remote Modbus Display connector One alarm relay with change over contact Alarm Buzzer fitted on board internally PID Control Output on terminals Aluminium Metal Enclosure IP65. Compression Fittings 6mm or 1/4" ferules Ukas traceable Calibration Certificate