Product Overview: Based on the atmospheric sampling instrument, Zu (i) has newly launched the QC-2B dual gas path independent timing control atmospheric sampling instrument. The functions and technical parameters of this instrument are the same as QC-2, with dual gas path self standing timing. The timing range is 1-99 minutes, and the initial timing is 30 minutes, which is more convenient for users to use. The QC-2B atmospheric sampler is a conventional instrument used to collect gas samples in atmospheric or working environments. It consists of two independent gas path systems composed of two suction pumps, which can simultaneously collect two types of gas samples or collect balanced samples. It is fast and reliable for sampling work. This sampler can be applied in metallurgy, mining, chemical engineering, construction, casting, power and environmental monitoring, health and epidemic prevention and other departments. It has the advantages of electronic timing function, compact rhythm, small size, stable and reliable performance, and is currently an ideal product among atmospheric samplers in China.