Patent ID: 8511143

Claim:
A sensor including: a sensing element which detects a specific component in a detection target gas; a circuit board on which a storage medium is mounted, the storage medium storing individual information related to the sensing element; an output base having: a pedestal portion on which the circuit board is placed; and a base portion in which a support surface is formed, the pedestal portion projecting from a middle part of the support surface; and a seal portion which is arranged above the support surface in a state where the seal portion covers the pedestal portion from upper and lateral sides, and which maintains the circuit board watertight, wherein the seal portion has an enclose portion which, in a state where the enclose portion protrudes from a peripheral edge of the support surface of the base portion, to a side surface of the base portion intersecting with the support surface at the peripheral edge, encloses the side surface along the peripheral edge.