Permatran-W Model 700 and Ox-Tran Model 702 measures water vapor and oxygen transmission rates, respectively. Coulox coulometric-type (oxygen) and modulated infrared (water vapor) sensors increase reading precision when measuring flexible or rigid packaging structures such as flat films, laminates, coextrusions, and bottles. Multicell configuration allows 7 different structures to be tested independently. Software's QuickStart feature commences testing in only 4 mouse clicks.