FIRE DETECTION APPARATUS

Provided is a sensor 100 provided with a detection element 700 for detecting heat of a heat air current generated in association with a fire in a monitoring area, in which the detection element 700 is disposed so that a detector protrudes from a predetermined base portion of the sensor 100, the sensor 100 includes a control structure that has a stepped portion higher than the predetermined base portion, the control structure being configured to guide the heat air current to the detector of the detection element 700 along an outer peripheral wall of the stepped portion, at least a part of the detector of the detection element 700 is located on a base portion side lower than the uppermost step of the stepped portion, a labyrinth portion guides the heat air current to the detector of the detection element 700 along a side end portion corresponding to an outer peripheral side of the stepped portion of a plurality of partition walls, and the heat air current containing smoke introduced into the labyrinth portion is introduced to the smoke detector disposed in a lower part of the control structure via an opening penetrating the stepped portion of the control structure from an upper surface to a lower surface side.