Nukit CO2 Controller (US/Canada)This is a simple device that takes AC mains power and turns it on or off depending on the ambient CO2 levels in a room. The purpose of this is to address indoor air quality issues with filtration or ventilation while also being conscious of energy use. The Nukit CO2 Controller uses an extremely accurate NDIR CO2 sensor (the Sensirion SCD40) on a convenient, 3 meter cable. Suggested use: Use one, CO2 Controller in each room. The best way to keep CO2