Auto Gas Permeability Tester is suitable for gas permeation property test for plastic film, laminated film, man-made leather and various barrier materials. It is used to ensure accurate test data. It has world-famous brand elements with stable and reliable performance. It has optional dual test modes, conventional and non-standard. It provides super powerful software support, diffusion coefficient, solubility coefficient and permeability coefficient calculated automatically. It easily gets gas transmission rate, diffusion coefficient, solubility coefficient and permeability coefficient of the materials under temperatures. It is applies to air block and gas permeability test of all kinds of flexible packaging materials such as films, foils, complex films and other plastic filmy materials. It is an indispensable testing instrument in packaging material testing, choosing and researching work.