Carbon dioxide monitors are designed for use in areas where carbon dioxide is used, stored, likely to accumulate or be present during the production process, such as those occurring within breweries. The monitor is ideal for environments including, but not limited to, breweries and bottling plants, laboratories, universities, pharmaceutical plants and agricultural sites. PureAire's CO2 monitors constantly measure air quality inside bars and restaurants, schools and office buildings. The display has a built-in long-life sensor, which can be used for more than 10 years under normal conditions.