A pressure sensor device comprising: - a casing defining a chamber and a fluid inlet passage of the chamber , the casing comprising a first casing part and a second casing part , - a pressure sensor having a sensor body with a cavity and a membrane , the sensor body being completely accommodated in the chamber such that the membrane is susceptible to deformation under the action of the pressure of a fluid present in the fluid inlet passage , - a pressure/voltage transducer unit, which includes the pressure sensor and a circuit arrangement to which the pressure sensor is electrically connected, the circuit arrangement including a circuit support at least partially accommodated in the chamber , wherein the first casing part forms said fluid inlet passage , designed to come into contact with the fluid subject to measurement, and defines the positioning of said pressure/voltage transducer unit, wherein the second casing part is designed to protect said pressure/voltage transducer unit and to enable electrical connection between the pressure/voltage transducer unit and an external connection wiring, wherein the sensor body is not rigidly associated to the casing and/or other parts of the device , i.e. it is mounted elastically or in a moveable manner with respect to the casing and/or to said other parts inside the chamber , preferably through at least one seal element or gasket . wherein the circuit arrangement comprises an electric connector (EC) to allow said electrical connection, the electric connector (EC) including connection terminals integrated in the second casing part and each having a first portion which is extended inside the chamber and a second portion which is extended outside the chamber , wherein - interposed between the first portion of the connection terminals and the circuit support are elastic contact elements , the elastic contact elements being configured and arranged to extend in a compression condition between the first portion of a respective connection terminal and the circuit support , - the elastic contact elements are electrically connected, preferably fixed mechanically and/or through welding, to the circuit support . - a casing defining a chamber and a fluid inlet passage of the chamber , the casing comprising a first casing part and a second casing part , - a pressure sensor having a sensor body with a cavity and a membrane , the sensor body being completely accommodated in the chamber such that the membrane is susceptible to deformation under the action of the pressure of a fluid present in the fluid inlet passage , - a pressure/voltage transducer unit, which includes the pressure sensor and a circuit arrangement to which the pressure sensor is electrically connected, the circuit arrangement including a circuit support at least partially accommodated in the chamber , - interposed between the first portion of the connection terminals and the circuit support are elastic contact elements , the elastic contact elements being configured and arranged to extend in a compression condition between the first portion of a respective connection terminal and the circuit support , - the elastic contact elements are electrically connected, preferably fixed mechanically and/or through welding, to the circuit support . <EOS>