| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sensor with functions other than a sensor simply and easily by using a structure in which a through hole temporarily allowing for insertion of a sensor line is provided, and allow for multi-functionalization. <P>SOLUTION: A sensor body 12 of a sensor 10 includes a through hole 14 that passes through a body center vertically. On an exterior surface of the sensor body 12, a light emission opening 16a and a light receiving opening 18a are provided, and fire disaster is determined by receiving by a light receiving element 18 scattering light of light emitted from a light emission element 16 to a smoke detection point P set in open smoke detection space positioned on the outside of a transparent cover 20. To the through hole 14 of the sensor body 12, a display unit 64 for displaying information is provided removably, and the display unit 64 displays time, temperature, and humidity, for example. To the through hole 14, an illumination unit, a sensor unit, an electroacoustic conversion unit, a communication unit, and the like may be provided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
