| 摘要 |
An electrical accessory having at least two functions selected from a ceiling rose (26) for providing means by which a mains light fitting is suspended from a ceiling, an emergency light (34), a gas detector (32), a smoke detector (30), a heat detector (40), an intruder detector (44) and audio/visual recording means, such a camera surveillance (42). The various detectors and emergency light are preferably associated with a ceiling rose that is at least partially translucent.
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