According to an embodiment, a pressure sensor can comprise: a sensor module including a strain gauge for measuring the pressure of gas flowing into a passage part formed therein; a substrate electrically connected to the strain gauge; a frame encompassing at least one part of the sensor module and supporting the substrate; a terminal electrically connected to the substrate and coming into contact with a contract point of an external device; a terminal holder for supporting the terminal; and a housing of which one side is connected to the housing or the frame and of which the other side encompasses at least one part of the terminal holder.