I myself have used analog WIKA pressure sensors and I think that Muller sensors are also made by WIKA. So a 0-16 bar with 0,5-5V or 0-5 V output is what you want.
Many cheaper alternatives also available from the internet.
A standard 4-20 mA output two wire sensor can also be used but you need to use a resistor to get 5V at full scale.
Pressure sensor is used in FielIQ (and EZBoom) for information only.
If I remember right you can have two pressure sensors in Filed IQ. So you could monitor if a filter is getting plugged.