[attach]5996[/attach]It's not really a problem if your sensor is aimed @ higher pressure. Solution: set the number of decimal places to 3 digits. Check my picture. I use the sensor to see the differential pressure. I have a 1hp Chiller connect to my overclock rig. That thing is LOUD so it sits in another room, with 28 meter of copper pipes and tubes. So I need loads of flow and want to see the pressure. Especially if I drop the water temperature to 3 ℃!