Pressure sensor module unit for detecting whether a seat is occupied

The pressure sensor module has a film pressure sensor (3) that is arranged with a base plate (1) and is provided with the individual sensor elements (4). The compressible intermediate layer (8) is arranged in opposite side of the film pressure sensor on the base plate. A dimensionally stable cover plate (14) is guided movably in the direction perpendicular to the plane of the film pressure sensor. The pin (16) is performed on the respective part in an orifice (17).