dschetel:
Right - I meant 20kPa!
But I still only find pressure sensor, which I think are not suitable for water / wet use.I found this one, but I am not sure, whether I can use it in water..
https://www.conrad.de/de/nxp-semiconductors-drucksensor-1-st-mpx2200ap-0-kpa-bis-200-kpa-print-1182857.html?sc.ref=Product%20Details
From the datasheet:
The MPX2200 series pressure sensor operating
characteristics and internal reliability and qualification tests
are based on use of dry air as the pressure media. Media
other than dry air may have adverse effects on sensor
performance and long term reliability. Contact the factory for
information regarding media compatibility in your application