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Carbon dioxide sensor


This automotive-grade carbon dioxide sensor is mainly applied in scenarios such as in-vehicle air purification, in-vehicle air quality monitoring, and monitoring of refrigerant leakage in automotive heat pump air conditioners. It can also be combined to monitor CO₂, PM2.5 and AQS, achieving multi-dimensional in-vehicle air management. The product features high precision and stable, reliable performance. It is equipped with an internal air pressure and temperature compensation mechanism to ensure measurement consistency under different environmental conditions. It has a fast response speed, CAN capture the changes in CO₂ concentration in real time, and supports multiple output methods such as LIN and CAN, which is convenient for flexible adaptation to different in-vehicle platforms.


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  • Detection Principle: NDIR (Non-Dispersive Infrared)
  • Measurement Range: 0 ~ 10,000 ppm (0 ~ 1%), expandable to 0 ~ 50,000 ppm (0 ~ 5%)

  • Measurement Accuracy:±50 ppm ±5% of Reading
  • Temperature Effect: ±5 ppm/℃ or ±0.02% of Reading/℃, whichever is greater

  • Pressure Effect: ≤±0.02%RD/hPa
  • Warm-up Time: Operational readiness approx. 1 min; full performance approx. 5 min

  • Response Time: T90 ≤ 25 s
  • Operating Voltage:8 ~ 18 VDC (customizable)

  • Output Interface: LIN / CAN (customizable)
  • Operating Environment: -40 ~ 105°C; 0 ~ 95% RH (non-condensing); 60 ~ 120 kPa

  • Storage Temperature: -40 ~ 105°C
  • NDIR can quantitatively and precisely measure gas concentration, monitor and output in real time, and has a short response time

  • Infrared sensing technology features high stability, strong anti-interference ability, and can operate stably for a long time without maintenance

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    +86 (0)769 83533290