Motion sensitive control apparatus
作者： Lee Eisinger
DOI:
关键词:
摘要: A motion sensitive control apparatus for turning on and off electrical devices. The turns light sources or devices in the presence of one more persons. also absence from persons a period time. produces an indication, such as loud noise flashing bright light, to indicate when source device has been activated deactivated by apparatus. backup components ensure that continues operate event primary fail.
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