To provide a pressure sensor capable of preventing water and dust from intruding into a pressure sensor inner space, by a simple constitution, and allowing inexpensive production.
This pressure sensor is provided with an electric wire insertion hole 41 drilled in a housing 4, an inner space side gas passage 422 with one end opened to a pressure sensor inner space 7, and a crossing part 421 for communicating the both. Since the electric wire insertion hole 41 is orthogonal to the crossing part 421, the water and the dust intruded into the electric wire insertion hole 41 comes hardly into the crossing part 421. The water and the dust are thereby hardly intruded into the pressure sensor inner space 7. The inexpensive production is allowed because a dust filter or the like is not required to be used for the purpose of preventing the water and the dust.
KOBAYASHI ISATO
MIYAHARA IKUYA
Kanji Nakayama
Tsuyoshi Ishizaki