| 摘要 |
Christmas ornament (10) for attaching to a Christmas tree, with a housing (12), which is preferably spherically shaped, the housing (12) being provided with a decorative outside, and at least one gas sensor (22), which, in case of detection of smoke, scorching or combustion gases triggers an acoustical and/or optical alarm (30, 26), the gas sensor (22) being arranged in the inside of the housing (12), the housing (12) being provided with gas inlet openings (24). Alternatively or additionally to the gas sensor (22) a position or inclination sensor (20) is arranged in the inside of the housing, which triggers an acoustical and/or optical alarm (30, 26) in case of a change of position or inclination of the Christmas ornament (10). |
