Unverified80% confidenceDecision RuleTime unknown
门磁两片（主体+磁体）安装间隙需≤15mm才能可靠触发，铁质防盗门或金属窗框可能干扰磁场导致失灵，选购前确认最大感应间隙并预留错位调整空间
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80%
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Long-term
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Unverified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90% similarUnverified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89% similarUnverified门磁的两块磁体感应间距（gap）需匹配安装场景：普通木门/铝合金门选间距≤15mm的型号即可，但推拉门、防盗门（框体不平整）应选间距≥25mm的宽感应型，否则关门后仍报警88% similarUnverified干簧管(磁簧)方案传感器磁铁间距需≤22mm才可靠触发，铝合金/金属门窗会削弱磁场，安装时磁铁与主体错位应控制在15mm内88% similarUnverified门磁间隙容差需≥15mm，普通门磁磁体与感应体贴合间隙超过10mm就可能触发误报，木门/铝合金门变形较大时应选宽容差型号88% similar
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