For the determination of CO2 easily: The Amibulles is a device that simply makes it possible to determine carbon dioxide (CO2) content in the wine. Operation: The agitation of the Amibulles releases carbon dioxide content in wine - By releasing the pressure, a certain quantity of wine escapes: this operation is repeated until no more wine that way. The remaining wine is degassed a table of volume-temperature established by repeated determinations by electrode determines the amount of CO2 depending on the volume of wine remaining and temperature -: Principle: The principle of Amibulles is based on physical laws of Mariotte and Gay-Lussac: volume, pressure and temperature. Comes with a thermometer and a table of correspondence.