| 摘要 |
<p>Provided are a gas sensor and a gas sensor unit that are able, even if a ceramic enclosure provided with a glaze layer on the outer surface thereof is secured to a main fitting, to resist cracking and breakage of the glaze layer. The gas sensor is provided with a gas detection element, a main fitting, and a ceramic enclosure. The ceramic enclosure has an enclosure trunk section provided with an enclosure-exposing section and an enclosure-covering section. The enclosure trunk section has on the outer surface thereof a glaze layer. The glaze layer on the enclosure-covering section has a recessed section that is recessed further inward in the radial direction than the glaze layer on the enclosure-exposing section. Metal packing is in contact with at least portions of the glaze layer other than the recessed section.</p> |
