A pressure sensor device for measuring pressure of a fluid, the pressure sensor device comprising: a mounting frame attachable to a pressure port of a fluid-containing enclosure, the mounting frame having an interior side for facing the fluid-containing enclosure, the mounting frame having an exterior side for facing away from the fluid-containing enclosure, the mounting frame including a flange defining an opening that extends from the interior side to the exterior side; a pedestal member defining a fluid conduit extending through the pedestal member, the pedestal member positioned such that the fluid conduit and a surface area of the pedestal member, through which the fluid conduit exits, are accessible from the exterior side of the mounting frame; and a microelectromechanical system (MEMS) die attached to the pedestal member at the surface area of the pedestal member such that when the fluid conduit is filled with fluid from the fluid-containing enclosure, the fluid presses against the MEMS die, characterised in that: the MEMS die is attached to the pedestal member using a rigid seal, the rigid seal having an opening such that the fluid contacts a portion of the MEMS die and preventing fluid from exiting the pressure sensor; and the pedestal member includes a shoulder positioned at the opening, the shoulder in contact with the flange on an interior side of the mounting frame such that the mounting frame mechanically prevents the pedestal member from completely passing through the opening when pressure is exerted on the pedestal member originating from the interior side and pressing the pedestal member towards the exterior side. a mounting frame attachable to a pressure port of a fluid-containing enclosure, the mounting frame having an interior side for facing the fluid-containing enclosure, the mounting frame having an exterior side for facing away from the fluid-containing enclosure, the mounting frame including a flange defining an opening that extends from the interior side to the exterior side; a pedestal member defining a fluid conduit extending through the pedestal member, the pedestal member positioned such that the fluid conduit and a surface area of the pedestal member, through which the fluid conduit exits, are accessible from the exterior side of the mounting frame; and a microelectromechanical system (MEMS) die attached to the pedestal member at the surface area of the pedestal member such that when the fluid conduit is filled with fluid from the fluid-containing enclosure, the fluid presses against the MEMS die, characterised in that: the MEMS die is attached to the pedestal member using a rigid seal, the rigid seal having an opening such that the fluid contacts a portion of the MEMS die and preventing fluid from exiting the pressure sensor; and the pedestal member includes a shoulder positioned at the opening, the shoulder in contact with the flange on an interior side of the mounting frame such that the mounting frame mechanically prevents the pedestal member from completely passing through the opening when pressure is exerted on the pedestal member originating from the interior side and pressing the pedestal member towards the exterior side. the MEMS die is attached to the pedestal member using a rigid seal, the rigid seal having an opening such that the fluid contacts a portion of the MEMS die and preventing fluid from exiting the pressure sensor; and the pedestal member includes a shoulder positioned at the opening, the shoulder in contact with the flange on an interior side of the mounting frame such that the mounting frame mechanically prevents the pedestal member from completely passing through the opening when pressure is exerted on the pedestal member originating from the interior side and pressing the pedestal member towards the exterior side.