Applicable to sealed packaging bags, bottles, and cans as well as MAP, active packaging, and preservative packaging, i-Gasatek 6900 determine content and mixing ratio of O2 and CO2. Auto lifting stand automates entire testing process, including sample piercing and gas analyzing, while filtering function prevents powder content within specimen from blocking instrument. Other features include multiple testing modes, record tracing and management, and data transmission via USB/Internet ports.