[KongchangAI]
Unverified90% confidenceFactTime unknown

所有燃气报警器传感器均有寿命,半导体/催化燃烧式一般5年、电化学CO传感器约3-5年,到期后灵敏度大幅下降必须整机更换,购买时确认产品标注的传感器寿命和生产日期

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90%
Confidence
Long-term
Relevance
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