[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

电化学甲醛传感器有寿命(通常2-3年)且会漂移,选购时确认是否支持零点校准/背景校准功能,长期不校准数值会逐渐失真;无校准功能的机型用一两年后数据参考价值大幅下降

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