Unverified83% confidenceDecision RuleTime unknown
校准便捷性关键看是否支持一键零点校准(在洁净空气中):CO₂需要户外400ppm基准校准,甲醛/VOC零点校准应放置洁净环境后归零,无校准功能的设备漂移后无法纠正
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