Monolithic Ceramic Pressure Transducers
The low cost version of the sensors in the range of 2...400 bar is available in a monolithic design with the ME651. The ME657 is a very small (diameter 12.85 mm, thickness 5.0 mm) monolithic type. It is also available in a packaged version, specially designed to be used in diving equipment (350 bar).
Ceramic sensor ME651 in round monolithic design. Pressure range: 1...400 bar
Very small ceramic sensor ME657 in round monolithic design. Pressure range: 350 bar 
Ceramic gauge sensor ME75X in round monolithic design. Pressure range: 2...400 bar, temperature-compensated with ratiometric 0-4.5V, or non-ratiometric 0-10V or 4-20mA.