| Detailed Description | The carbon dioxide gas sensor is a general-purpose intelligent infrared gas sensor (hereinafter referred to as the sensor). This sensor utilizes the principle of non-dispersive infrared (NDIR) to detect CO2 in the air. It is oxygen-independent, stable in performance, and has a long lifespan. It features built-in temperature compensation. This sensor is a compact, high-performance device manufactured by tightly integrating mature infrared absorption gas detection technology with micro-machining and sophisticated circuit design. |
| Main Applications | HVAC and indoor air quality monitoring, industrial process and safety protection monitoring, agricultural and livestock production process monitoring |
| Detecting Gas | Carbon dioxide |
| Molecular Formula | CO2 |
| Power Supply Voltage | 3.6–5 V DC (must be powered by a safety barrier) |
| Average Current | <85 mA |
| Interface Level | 3.0 V |
| Measurement Range | Available in the range of 0–10% Vol. |
| Output Signal | UART; Analog voltage 0.4–2 V (output must pass through a safety barrier) |
| Preheating Time | 3 min |
| Response Time | T90 < 30 s |
| Operating Temperature | -20~60℃ |
| Operating Humidity | 0–95% RH (non-condensing) |
| External Dimensions | Φ20 mm × 22.4 mm |
| Weight | 35 g |
| Life | >5 years |
| Range | 0~2000 ppm 0~6000 ppm 0~1% Vol 0~3% Vol 0~5% Vol |
| Accuracy | ±(50 ppm + 5% reading) |
| Features | High sensitivity, high resolution, low power consumption, and fast response time Provides multiple output methods such as UART and analog voltage. Resistant to moisture interference and non-toxic |
| Note | Detection ranges and response times (T90) may vary by model and target gas. For custom configurations or OEM requirements, contact our technical support team. |
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For industrial/research use only. Not for personal/medical use.
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