There has been a lot of discussion on the Arduino forums along similar lines, so I suggest to use the search function.But here is one recent thread: http://forum.arduino.cc/index.php?topic=206066.0and you might consider the "etape" sensor: https://www.adafruit.com/products/464
the sensor might need to be submerged in very hot water (i.e. almost boiling).
Quotethe sensor might need to be submerged in very hot water (i.e. almost boiling).Read the adafruit page: max 140F, 60C
Would the pressure sensor opperate properly in that heat?