NDIR Dual-Channel 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, and is widely used in automotive HVAC systems, intelligent cockpit air quality monitoring, and industrial environmental monitoring.

  • Automotive-grade design for demanding operating conditions
  • High-accuracy detection for wide-range applications
  • Long-life structure for maintenance-free operation
NDIR Dual-Channel CO2 Sensor Module
Sensor Technology Principle
CO₂ Sensor Principle Diagram
CO₂ Sensor Principle Diagram
Technical Specifications
CO₂ Sensor Module
Measurement Range
0~50,000 ppm
Power Consumption
Average: 15 mA Peak: 150 mA Sleep Mode: <100 μA
Accuracy
+/- (50 ppm + 3% of reading)
Communication Method
LIN / CAN communication
Resolution
1 ppm
Service Life
>=15 years
Warm-Up Time
15 seconds
Response Time T90
< 60 s
Operating Temperature
-20 ~ 70 ℃
Operating Humidity
0-95% (non-condensing)
Storage Temperature
-30 ~ 70 ℃
Power Supply Voltage
4.5~6.5 V
Applications
In-Vehicle Air Purification / Intelligent Cockpit

In-Vehicle Air Purification / Intelligent Cockpit

For automotive HVAC systems and intelligent cockpit applications, this automotive-grade NDIR CO₂ sensor module monitors in-cabin CO₂ concentration in real time for intelligent fresh-air control and automatic recirculation adjustment. It helps prevent fatigue and drowsiness caused by CO₂ buildup, improving driving comfort and safety for passenger cars, commercial vehicles, and new energy vehicles.

Residential/Central Air Conditioning

Residential/Central Air Conditioning

Suitable for CO₂ monitoring in residential and commercial central air conditioning systems, with real-time data feedback for intelligent fresh-air system control. Ventilation volume can be adjusted automatically based on occupancy and indoor air conditions to maintain air quality while improving energy efficiency.

Fresh Air System

Fresh Air System

Used in residential and commercial fresh-air systems to monitor indoor CO₂ concentration in real time as a key basis for ventilation control. Dual-channel NDIR technology ensures long-term stable output and supports continuous operation in high-reliability applications.

Air Purifier

Air Purifier

Suitable for air purification equipment and intelligent building control systems, with dynamic monitoring and analysis of indoor CO₂ concentration. It can serve as a core IAQ parameter to support energy management and environmental optimization strategies.

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