Rotronic CP11 CO2 Air Quality Monitor The CP11 handheld Air Quality monitoring instrument from Rotronic(USA) evaluates the quality of air with a combined measurement of CO2, humidity and temperature. A high concentration of carbon dioxide can develop quickly when closed areas with deficient ventilation are filled with people. Carbon dioxide (CO2) is a colorless and odorless gas that exists in the earth's atmosphere and which is dangerous in high concentrations The CP11 handheld instrument is the latest development of an economical multiple parameter meter that simultaneously measures and records CO2, humidity and temperature. It also calculates the dew point and wet bulb temperature. Equipped with the field-tested ROTRONIC HYGROMER® IN-1 humidity sensor, this instrument offers unbeatable value for money. The CP11 includes the ROTRONIC SW21 software which can be used to program, download data and save logged files. Applications: Indoor Air Quality, Commercial Spaces,Industrial, Chemical Laboratories, Manufacturing Units, Weather Monitoring, Industrial Safety and Underground Garages