Unverified78% confidenceFactTime unknown
红外感应报警器的探测角度和距离直接决定覆盖范围,常见广角机型探测角度约110°、距离6-8米;柱状防护(如单个垃圾桶)应选窄角小范围机型以减少无关区域误报
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78%
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