Unverified85% confidenceDecision RuleTime unknown
选购前确认磁体与传感器主体的最大触发间隙参数，普通产品需≤15mm，若门框与门缝隙大（老旧木门、推拉窗）应选支持25mm以上间隙的型号，否则关门也会误报开门
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85%
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Long-term
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Unverified门窗传感器磁体间隙需≤22mm才能可靠触发，门框与门扇缝隙大或包边异形门建议选带加长磁体或可调间隙型号92% similarUnverified磁簧开关门窗报警器的磁铁与传感器主体间隙需≤15mm才能可靠触发，安装于老旧变形门框或缝隙大的窗户时应选择间隙容差≥25mm的宽感应型号91% similarUnverified门磁报警器的磁体与感应体最大间隙需≥15mm才实用，间隙＜10mm的产品对门框变形或密封条厚的门容易漏报或误报，安装位置受限严重89% similarUnverified门磁的感应间距（磁体与传感器分离触发距离）应≤2cm才灵敏，选购时看参数应≥15mm触发，间距过大易漏报；木门变形或密封条厚的老门建议选间距容差大的（20mm以上）89% similarUnverified门磁的感应触发间隙（磁铁与主体分离距离）一般为10-25mm，铝合金/推拉窗因框体不平整安装误差大，应选触发间隙≥20mm的宽容差型号，避免关窗时误判为开启88% similar
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