Automatic Ozone Chamber is designed to provide precise, accurate ozone and concentration environment for rubber and polymer test. It is widely applied to accelerated ageing research, quality control and assurance tests and R&D laboratory formula experiments for cracking resistance. It has wide ranges of ozone concentration that satisfy user's different requirements. It is controlled and measured accurately by means of precise detecting system. It provides both static and dynamic strain sample holders that conform to international standards. It has excellent system control. It maintains rapid resumption of O3 concentration during continuous circulation with the ability of automatically and steadily keeping the chamber temperature. It provides full automatic test after simple settings. It is designed to determine the resistance of rubbers and polymers to ozone and suitable for accelerated aging research, quality control and assurance tests, and research and development laboratory formula experiments.