Metallux ME800 differential pressure sensors are made with a ceramic base plate and a flush diaphragm and work following the piezoresistive principle. The Wheatstone bridge is screen printed on one side of the flush ceramic diaphragm which is, in turn, glued to the sensor body. The bridge can be protected by additional coating allowing the sensor to be exposed directly to water or liquid media.

Because of the Al2O3 ceramic excellent chemical resistance, the other side of the sensor does not need any additional protection. Metallux differential pressure sensors feature an optional screen-printed PTC in order to measure the temperature drift of the fluid. The measurement can also be used to compensate the temperature drift of the Wheatstone bridge to achieve high accuracy readings.