| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire alarm capable of improving detection accuracy of fire. SOLUTION: The fire alarm 2 includes a box type body 10, a rectifier plate 30 formed in parallel with one face 11 of the body 10 at intervals, and a fire detection sensor 25 projected from one face 11 of the body 10 to the rectifier plate 30. The fire detection sensor 25 is a thermal sensor for sensing heat in atmosphere and detecting fire. COPYRIGHT: (C)2010,JPO&INPIT
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