High sensitivity and resolution
Low power consumption and fast response time
Provide UART, analog voltage and other output modes
Temperature compensation, excellent linear output
Excellent stability
Anti-water vapor interference, anti-poisoning, long service life
This 4N-CO2 carbon dioxide gas sensor is a general intelligent infrared gas sensor (hereinafter referred to as the sensor). It uses the principle of non-dispersive infrared (NDIR) to detect the CO2 in the air. It has no oxygen dependence, stable performance, long service life, and built-in temperature compensation. The sensor is a compact high-performance sensor made by combining infrared absorption gas detection technology with micro-machine processing and excellent circuit design.
| Model | 4N-CO2 |
| Detection Gas | CO2 |
| Working Voltage | 3.6~5.5V DC（powered by safety barrier） |
| Average Current | <60mA |
| Testing Range | 0~100%Vol |
| Interface level | 3.0V |
| Output Signal | UART |
| 0.4~2V | |
| Preheating Time | 1min |
| Response Time | T90 < 30s |
| Working Temperature. | -20~60 ℃ |
| Working Humidity | 0~95% RH (No Condensation） |
| Overall Dimension | Φ20 mmX21.4 mm |
| Weight | 35g |
| Service life | >5 Years |
| Protection Grade | IP54 |
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