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Choose SUCH CO₂ concentration sensors as the cornerstone of your air quality device's performance. This carbon dioxide sensor boasts a wide measurement range of 0–10,000 ppm, with a heating voltage of 6.0V and heating resistance of 35Ω, ensuring stable and consistent data output. Its zero-point EMF (at 400ppm CO₂) reaches 300–500mV, making it ideal for long-term continuous monitoring.
The internal resistance of the CO₂ concentration sensor test circuit should exceed 100 GΩ. Otherwise, it will affect sensor performance.
When the sensor is maintained at a specific operating temperature and placed in CO₂ gas, an electrochemical reaction occurs between the battery's positive and negative electrodes. An electromotive force is generated between the sensor's sensitive electrode and reference electrode, producing an output signal voltage that exhibits an inverse linear relationship with the logarithm of CO₂ concentration. By measuring changes in this signal voltage, variations in CO₂ concentration can be detected.
Yes. Temperature, humidity, atmospheric pressure, dust, and airflow variations can all impact sensor readings. To ensure accuracy, CO₂ sensors typically incorporate temperature and humidity compensation designs that automatically calibrate under different conditions. Additionally, avoid direct exposure to air vents, pollution sources, and intense light to maintain stable readings.
CO₂ concentration sensors are suitable for indoor air quality monitoring, fresh air system control in office buildings, environmental detection in schools and hospitals, and HVAC system optimization. By continuously monitoring CO₂ levels, they enhance air quality, safety, and energy efficiency.