Unverified78% confidenceDecision RuleTime unknown
室外或半开放楼道安装的报警器需IP54及以上防水防尘等级；纯室内门内侧安装的可放宽到IP44，但北方冬季结露环境仍建议IP54
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified户外门口机防护等级至少要IP54，露天无雨棚遮挡的位置需IP65以上，否则南方雨季或北方冷凝易导致镜头起雾和电路进水86% similarUnverified室外声光报警器需选IP65及以上防护等级，IP54仅适合屋檐下等有遮挡的半户外环境，长期日晒雨淋会导致IP54外壳老化进水失效85% similarUnverified室外用声光报警器防护等级需达到IP65以上，室内可选IP44即可；沿海或多雨地区建议IP66，防止盐雾和暴雨渗入导致电路短路84% similarUnverified防水等级至少IP54，室外无雨棚遮挡的门口选IP65及以上；南方多雨或阳台外露环境低于IP65长期使用易进水失灵83% similarUnverified非可视门铃发射器（门口按钮）应选IP44及以上防水等级，若门口无雨棚遮挡需IP55以上，否则雨季易进水失灵83% similar
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