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用于TSI8535和8537环境监测箱的带防雨罩的全向采样头。此款采样头包含在8535和8537环境监测箱采购套件内。但是可以按照此产品编号购买,以替换丢失或损坏的采样头或作为备用。
The Model 8694 allows staff to easily and securely change room mode from positive to negative.