The Laoying 1085K docking type smoke and dust multifunctional sampling tube is suitable for measuring the concentration of particulate matter from fixed pollution sources. By designing a special docking structure, convenient and efficient on-site docking can be achieved to extend the length of the sampling tube. Applicable standard 3 # filter cartridge. Combination integrated structure: The S-shaped pitot tube and sampling tube are organically combined, with a compact structure that can measure flow velocity while sampling. It can be used in conjunction with the Laoying 3012H automatic smoke (gas) tester (new 08 generation), Laoying 3012H-C automatic smoke (gas) rapid tester, Laoying 3016 boiler energy efficiency comprehensive tester, etc.