Dual air path atmospheric sampler

This instrument uses dual pumps to independently complete two sets of gas paths without interference. The circuit is controlled by microcomputer chip technology and is equipped with a high-energy cadmium nickel rechargeable battery. It has a long continuous operation time, easy operation, high timing accuracy, durability, compatibility with AC and DC, and convenient and fast timing selection. Countdown time can be freely selected within the range of 1-99 hours and 59 minutes. It is currently the most ideal and practical dual gas path gas poison sampler among similar instruments in China.