Compact controller with built in Sensor Power output 24VAC - 350mA LCD display standard Keyboard standard Auto Zero standard PID Control output on 0-10V 4-20mA or 24VAC open - off - closed. Modbus RTU Communication standard Linearity 0.5% of Full Scale Ukas Calibration Certificate standard Remote Modbus Display connector standard One alarm contact Alarm Buzzer fitted ABS plastic enclosure IP65.