| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustible gas sensor in which an air-permeable metal body having an explosion-proof function is placed in a casing member, the combustible gas sensor coming in a downsized compact size. ! SOLUTION: There is provided a combustible gas sensor 100 comprising a sensor element 60, a resin-made casing member 10 for accommodating the sensor element in its interior, and a metal body 20 having a plurality of ventilation parts, the sensor element being exposed via the ventilation parts of the metal body 20 to an atmosphere to be detected, wherein the combustible gas sensor 100 is further provided with a pair of holding members 21, 22 made of resin and in the same shape, respectively arranged on the front surface side and the reverse surface side of the metal body, for holding the metal body by making the metal body exposed from a ventilation hole 12h formed in each, and having engaging parts 21p, 22p and parts 21h, 22h to be engaged which are engageable with each other, at least |
