Carbon Dioxide (CO₂) Sensors

These single channel, non-dispersive infrared (NDIR) sensors are easy to integrate using a UART digital interface. The Automatic Baseline Correction (ABC) function can automatically calibrate the sensor’s lowest reading over a pre-configured interval to 400 ppm CO₂, enhancing long term stability. Potential applications include HVAC demand controlled ventilation, indoor air quality (IAQ) measurement, and air purification systems.