Unverified85% confidenceFactTime unknown
低电提示：合规产品在电量不足时会周期性（约每30-60秒）鸣叫报警至少7天，用于提醒更换电池；若无低电提示功能，电池耗尽后会静默失效存在盲区风险
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85%
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Long-term
Relevance
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