The SCD40 has high accuracy and cost effectiveness, and the module leads the power supply and communication pins with 2.54mm pitch row pin interface. On-chip temperature and humidity compensation is achieved by built-in temperature and humidity sensors for humidity and temperature measurement. SCD40 enables intelligent adjustment of indoor ventilation system based on CO2 concentration, and indoor air quality helps to maintain a healthy and efficient environment with low CO2 concentration over a period of time.