All-in-One Sensor Module (PM+CO₂+NTC) - S21

This MAXMAC automotive-grade all-in-one sensor module integrates PM particulate detection, CO₂ monitoring, and NTC temperature sensing, and is designed for intelligent in-vehicle cabin air quality management systems. The module uses high-precision sensing units and a stable signal processing architecture to enable synchronized multi-parameter acquisition and real-time output, providing reliable data support for intelligent cockpits and air purification systems.

  • Highly integrated 3-in-1 design reduces system complexity and vehicle cost
  • Supports intelligent linkage with HVAC and fresh-air circulation systems
  • Automotive-grade reliability for complex in-vehicle environments
All-in-One Sensor Module (PM+CO2+NTC)
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Sensor Technology Principle
All-in-One Sensor Principle Diagram
All-in-One Sensor Principle Diagram
Technical Specifications
PM+CO₂+NTC
Detection Parameters
CO2 / PM2.5 / TVOC / Temperature / Humidity
Protection Rating
IP54
CO2 Detection Range
400-5,000 ppm (expandable to 10,000 ppm)
Supply Voltage
DC 9V – 16V
CO2 Detection Accuracy
+/- (50 ppm + 5% of reading)
Communication Interface
UART / RS485 / LIN (optional)
PM2.5 Detection Range
0 – 1,000 μg/m³
Response Time
<= 30 s (typical)
PM2.5 Detection Accuracy
+/-15% or +/-15 ug/m3 (20C-60C, reference ISO 18530)
Installation Location
Room wall, plenum box, fresh-air duct, or near the return-air inlet
TVOC Detection Range
0 – 10 mg/m³
Typical Applications
Residential HVAC systems, intelligent fresh-air systems, and indoor air quality monitoring
TVOC Resolution
0.01 mg/m³
Temperature Detection Range
-40°C – +85°C
Temperature Detection Accuracy
±0.5°C
Humidity Detection Range
0 – 100 %RH
Humidity Detection Accuracy
±3 %RH
Operating Temperature
-40°C – +85°C
Storage Temperature
-40°C – +95°C
Applications
In-Vehicle Air Purification / Intelligent Cockpit

In-Vehicle Air Purification / Intelligent Cockpit

This MAXMAC automotive-grade all-in-one sensor module integrates PM particulate detection, CO₂ monitoring, and NTC temperature sensing, and is designed for intelligent in-vehicle cabin air quality management systems. The module uses high-precision sensing units and a stable signal processing architecture to enable synchronized multi-parameter acquisition and real-time output, providing reliable data support for intelligent cockpits and air purification systems.

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