Patent ID: 7216545

Claim:
A pressure sensor comprising: a housing having a conductive member insert molded therewith; a sensing element disposed in the housing and electrically connected to the conductive member, the sensing element detecting a pressure and producing an electrical signal in accordance with the detected pressure; and a protective member which has an electrical insulating property and covers the conductive member and the sensing element, wherein the protective member includes a first protective member, a second protective member, and a third protective member, the first protective member is made of a fluorine-based rubber and covers the conductive member and a connection portion between the conductive member and the sensing element, the second protective member is made of a fluorine-based gel and disposed outside of the first protective member to cover the sensing element and the connection portion, and the third protective member is made of a material having a higher acid resistance than the fluorine-based gel and disposed outside of the second protective member to cover the second protective member.