Automotive CO2 Sensor

This MAXMAC-developed automotive-grade NDIR dual-channel CO₂ sensor module uses highly stable non-dispersive infrared detection technology. It offers fast response, strong anti-interference performance, and excellent long-term stability. Designed for automotive environments, it operates reliably under high temperature, vibration, and complex electromagnetic conditions, making it suitable for automotive HVAC systems, cabin air quality monitoring, and smart cockpit applications.

  • Automotive-grade design for demanding vehicle environments
  • NDIR non-dispersive infrared technology
  • 0-50000 ppm wide measuring range
  • T90 ≤ 60 s response
  • -40℃ to 85℃ operating temperature
Automotive CO2 sensor module with NDIR carbon dioxide detection
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Sensor Technology Principle
CO₂ Sensor Principle Diagram
CO₂ Sensor Principle Diagram
Technical Specifications
Automotive CO2 Sensor
Product Name
Automotive CO2 Sensor
Detection Principle
NDIR non-dispersive infrared
Detection Target
CO2 (carbon dioxide)
Operating Voltage
9-16 VDC, typical 13.5 V
Operating Current
20 mA @ DC13.5V, ambient 25°C
Peak Current
≤ 300 mA
Static Current
≤ 0.1 mA
Measurement Range
0-50000 ppm
Resolution
1 ppm
Measurement Accuracy
0-50°C: ±50 ppm + 5% reading; -40-0°C / 50-85°C: ±100 ppm + 10% reading
Response Time
T90 ≤ 60 s
Operating Temperature
-40°C to 85°C
Storage Temperature
-40°C to 90°C
Operating Humidity
0-95%RH, non-condensing
Service Life
15 years
Weight
≤ 20 g

Note: Specification parameters can be further confirmed according to vehicle project interface, calibration, and installation requirements. Document: MAXMAC-Automotive-CO2-CN Rev:1

Applicable Systems
  • Cabin CO2 concentration monitoring
  • Automotive HVAC fresh air intake control
  • Smart cockpit air quality monitoring
  • EV/HEV thermal management systems
  • Passenger car cabin air monitoring
  • Commercial vehicle cab CO2 monitoring
  • Bus and school bus cabin air quality monitoring
  • RV and specialty vehicle ventilation systems
  • Automatic cabin air recirculation control
  • Driver drowsiness and fatigue risk alerts
  • Automotive HVAC air quality monitoring systems
Applications
Cabin Air Quality / Smart Cockpit

Cabin Air Quality / Smart Cockpit

For automotive HVAC and smart cockpit applications, this automotive-grade NDIR CO₂ sensor module monitors cabin CO₂ concentration in real time to support fresh air intake control and automatic cabin recirculation. It helps reduce fatigue and drowsiness risks caused by CO₂ buildup, improving comfort and safety in passenger cars, commercial vehicles, and electric or hybrid vehicles.

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