What is the definition of a wireless CO2 sensor HVAC? A wireless CO2 sensor HVAC is a device that is used for monitoring the level of carbon dioxide in the air. It is most commonly used in buildings where people need to be kept safe from high levels of carbon dioxide. This device uses sensors to detect the levels of CO2 in the air and then sends a signal to an HVAC system, which then adjusts the temperature and ventilation accordingly. This device is an essential component of any building that requires a safe and comfortable environment for its occupants. The wireless CO2 sensor HVAC works by using a variety of sensors, such as infrared and ultraviolet light detectors, that detect the presence and levels of carbon dioxide in the air. These sensors then send a signal to the HVAC system, which then adjusts the temperature, ventilation, and air quality accordingly. The HVAC system also makes sure that the carbon dioxide levels in the air stay at an acceptable level