Hello, I am trying to find a pressure sensor to measure vacuum. I have found some sensors from this page Vacuum Sensors –50 to –115 kPa | NXP . The sensor MP3V5050GP for example is included in this list but the pressure shown has only positive values "0.0 - 50.0". I am wondering whether this means that it can measure only positive or only negative pressure, meaning that it is unidirectional. Otherwise this sensor would have been placed in this category by mistake and it is not suitable for vacuum measurements.