Unverified85% confidenceDecision RuleTime unknown
独立本地报警器（仅蜂鸣无联网）报警音量应≥100dB才能有效震慑入侵者并唤醒室内人员；低于85dB的产品实际隔一道门几乎听不到
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Unverified本地独立蜂鸣型报警音量应≥100dB（1米处）才能起到威慑驱离作用，85dB以下仅相当于提醒，无法惊吓入侵者90% similarUnverified本地报警音量应≥85dB，才能穿透关闭的门和相邻房间被家人听到；若为独居无人同住场景，纯本地报警无意义，必须选带远程推送/呼叫功能的联网款83% similarUnverified报警声量选100dB以上才能在户外空旷环境有效震慑和唤醒，室内型80dB的报警器在旷野中衰减严重，10米外几乎听不清83% similarUnverified本地声光报警的警号音量应≥110dB才有实际震慑作用，且警号最好独立供电或内置备电，与主机分离安装（主机藏匿、警号外露）以防被同时破坏82% similarUnverified独立式声光报警器音量应≥110dB才能起到威慑与全屋唤醒作用，低于90dB的仅适合作提醒用途，无法在深夜或隔房间起效82% similar
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