In scenarios like smart homes and fresh air systems, the accuracy of CO2 concentration monitoring is directly related to indoor air quality and energy optimization. However, traditional single-channel sensors suffer from poor long-term stability (e.g., drift caused by light source attenuation), weak anti-interference capabilities (temperature and humidity fluctuations affect readings), and insufficient precision. The MTP80-A dual-channel NDIR CO2 sensor from MFrontier was developed to address these core pain points.
1. Technical Advantages of Dual-Channel NDIR CO2 Sensors
The MTP80-A utilizes the non-dispersive infrared (NDIR) detection principle, achieving "signal + reference" dual-channel compensation through two optical channels:
The main channel detects infrared energy in the characteristic carbon dioxide absorption band (4.26 um), directly reflecting gas concentration;
The reference channel monitors infrared energy in the non-absorption band, effectively offsetting interference factors such as light source attenuation, temperature and humidity fluctuations, and dust contamination in real time.
Compared to the MTP60-A, the MTP80-A achieves breakthrough dual-channel detection technology while maintaining full dimensional compatibility (direct replacement) through a restructured optical path and gas chamber, optimized PCB layout, and upgraded gas probe structure. This provides a "double insurance" for the sensor, significantly enhancing long-term stability and anti-interference capabilities.
2.Product Performance of the MTP80-A NDIR Carbon Dioxide Sensor
Measurable Gas Type | CO2 |
Measuring concentration range | 400ppm~5000ppm（The measuring range can be customized to 10000ppm） |
Measured interval | 2s |
Measurment Accuracy | ± (40ppm + 4% of reading ).25℃ +2℃. 50%±10%RH Environment |
Responsive time | T90=90s |
Power supply requirement | 4.2V~5.5V |
Current Consumption | 250mA peak current 5mA normal operating current 20mA average operating current |
Self-calibration period | The default self-calibration period is 7 days |
Communication Interface | UART /IIC/PWM |
Working environment | 0~50°C；0~90% RH（no condensation） |
Storage temperature range | -20~60°C |
Life | ≥10years |
3. Applications of the MTP80-A NDIR Carbon Dioxide Sensor
Fresh Air Systems: Real-time CO₂concentration sensing enables intelligent activation and deactivation of fresh air systems to avoid ineffective ventilation.
Smart Homes: Collaborate with air conditioners, humidifiers, and other devices to create a living space that breathes.
Air Purifiers: Linked to purifiers, the system dynamically adjusts air speed based on CO₂ concentration, balancing purification efficiency and energy consumption.
Greenhouse Gas Emission Control: Real-time monitoring of emission source concentrations using CO₂ sensors facilitates rapid identification of abnormal emissions and implementation of targeted control measures.
The MTP80-A utilizes dual-channel technology within a comparable size to break the performance ceiling of conventional single-channel sensors, providing a one-stop solution for air monitoring with high accuracy, low maintenance, and a long lifespan.
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