A carbon dioxide transmitter measures CO₂ concentration using infrared (NDIR) or electrochemical sensing technology. In NDIR sensors, an infrared light beam passes through the air sample, and the amount of absorbed light correlates to CO₂ concentration. The sensing signal is then converted by the industrial transmitter's electronics into a standardized output, such as 4–20 mA or digital communication. This output is sent to building management or control systems for ventilation control, air quality
Our CO2 sensors are designed for seamless integration across HVAC, industrial and agricultural scenarios, delivering reliable real-time CO₂ monitoring and automatic linkage control for all commercial projects. All carbon dioxide transmitter models support standard 4-20mA, 0-10V and RS485 Modbus output, compatible with 99% of mainstream HVAC, PLC and building automation systems.
