High-precision infrared CO2 sensor module adopts advanced NDIR infrared technology Utilizing NDIR technology, this sensor ensures high sensitivity and stability in detecting CO2 levels. With low average current consumption, temperature and humidity tolerance, and 10-year average service life make it suitable for HVAC systems, indoor air quality monitors, smart ventilation equipment, environmental monitoring devices, and other embedded CO₂ detection applications.
Single-Wavelength NDIR Technology
- Single-Wavelength Detection: Uses a dedicated infrared wavelength to measure CO₂ concentration based on its specific infrared absorption characteristics.
- Reliable CO₂ Measurement: Provides stable detection by analyzing the absorption of infrared light by CO₂ molecules.
- Compact Sensor Design: A single-wavelength optical structure helps simplify the sensing system while maintaining a compact module size.
- Fast Measurement Response: Enables efficient infrared signal detection for real-time CO₂ monitoring.
- Low Power Consumption: Optimized optical and electronic components help reduce power requirements for embedded applications.
- Stable Long-Term Operation: Non-contact infrared detection avoids consumable chemical sensing elements, supporting long service life and consistent performance.
Industrial-Grade Precision
- High-Precision CO₂ Detection: Delivers accurate and consistent CO₂ concentration measurements for demanding monitoring applications.
Stable Measurement Performance: Maintains reliable measurement accuracy during continuous operation in industrial environments. - Excellent Measurement Resolution: Provides fine CO₂ concentration resolution for precise air-quality and process monitoring.
- Temperature Compensation: Helps minimize measurement deviations caused by changes in ambient temperature.
- Strong Environmental Adaptability: Designed to maintain stable performance across a wide range of operating temperatures and humidity conditions.
- Reliable Long-Term Monitoring: Combines NDIR technology with high-precision signal processing for consistent CO₂ measurement over extended periods.
Applications
A CO2 Gas Sensor can be used in a wide range of applications where carbon dioxide concentration needs to be monitored, controlled, or analyzed. Common application fields include:
- Greenhouses & Agriculture: Monitoring and controlling CO₂ concentration to support plant growth and improve greenhouse environmental management.
- Laboratories: Suitable for laboratory equipment and environmental monitoring systems requiring accurate CO₂ measurement.
- Food & Beverage Industry: Used for monitoring CO₂ levels during food processing, beverage production, packaging, and storage.
- Medical & Healthcare Equipment: Integrated into certain respiratory and patient-monitoring equipment where CO₂ measurement is required.
- Automotive & Transportation: Used for monitoring cabin air quality in vehicles, buses, trains, and other enclosed transportation environments.
Greenhouses & Agriculture
Laboratories
Food & Beverage Industry
Automotive
| Model | SISCO-GS-CO2-C8 |
| Measurement Range | 400–5000 ppm |
| Resolution | 1 ppm |
| Accuracy | ±(50 ppm + 5% of reading) |
| Response Time (T90) | <120 s |
| Data Update Time | <3 s (Typical: 1 s) |
| Preheating Time | <25 s (Adjustable); <2 min (90% accuracy); <10 min (Maximum accuracy) |
| Supply Voltage | Typ. 5.0 VDC / Min. 4.5 VDC / Max. 5.5 VDC |
| Operating Current | Peak: 80 mA / Average: 30 mA |
| Data Interface Level | Low <0.8 V @ 3.3 V / High >2.7 V @ 3.3 V |
| Operating Temperature | -10 to +50°C |
| Operating Humidity | 0–85% RH, non-condensing |
| Storage Temperature | -40 to +75°C |
| Average Service Life | 10 years |
| Maximum Dimensions* | 33 * 21 * 11 mm |
| Pin Spacing | 2.54 mm |
Dimension
Digital Interface Definition
Q1: What is a CO2 sensor?
A1: A CO2 sensor is a device used to measure the concentration of carbon dioxide in the air. It converts the detected CO₂ concentration into an electrical signal that can be displayed or processed by a monitoring or control system. CO₂ sensors are widely used in indoor air quality monitoring, HVAC systems, industrial equipment, greenhouses, and environmental monitoring.
Q2: How does a CO2 sensor work?
A2: SISCO CO₂ sensors use infrared sensing technology, particularly Non-Dispersive Infrared (NDIR) technology. The sensor measures how much infrared light is absorbed by carbon dioxide molecules in the air. The amount of infrared absorption is related to the CO₂ concentration, allowing the sensor to calculate and output a corresponding reading.
Q3: Can a CO2 sensor be integrated into an existing system?
A3: Yes. Many CO₂ sensor modules are designed for integration into larger systems and electronic equipment. Depending on the specific model, available communication or output interfaces may include UART, PWM, analog output, or other digital interfaces. Users should check the sensor's specifications to ensure electrical and communication compatibility.
Tips: What is a single-wavelength NDIR CO₂ sensor?
A single-wavelength NDIR CO₂ sensor is a carbon dioxide sensor that uses one specific infrared wavelength to detect CO₂ absorption. When infrared light passes through the sensing chamber, CO₂ absorbs part of the light at its characteristic wavelength, and the sensor analyzes the change in light intensity to determine the CO₂ concentration.
Compared with more complex multi-wavelength designs, a single-wavelength structure can provide a compact and straightforward optical system, making it suitable for embedded CO₂ monitoring devices, indoor air quality monitors, HVAC systems, and other applications requiring reliable CO₂ measurement.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
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