Qubit Systems provides packages for measurements of dissolved CO2 in water at atmospheric pressure. Our Dissolved CO2 Systems are unique since they employ infrared gas analysis to measure pCO2 dissolved in water rather than indirect methods where CO2 levels are calculated from measurements of pH. Qubit DCO2 Systems are customized to measurements of various levels of CO2 from ppm to %. They have various applications from ocean acidification studies to aquaculture and even aquatic respirometry.