Air Quality Sensor NO2

The NO₂ Air Quality Sensor (RS485 Modbus) is designed for precise detection of Nitrogen Dioxide gas concentrations in ambient air. Using advanced electrochemical sensing technology, it offers high accuracy, long-term stability, and low cross-sensitivity to other gases. With RS485 Modbus RTU communication, the sensor ensures reliable, long-distance data transmission, making it ideal for air quality monitoring systems, industrial safety, and environmental research.

• Gas Detected: Nitrogen Dioxide (NO₂)

• Measurement Range: 0–20 ppm (customizable ranges available)

• Resolution: 0.01 ppm

• Accuracy: ±3% FS

• Sensor Type: Electrochemical

• Output Interface: RS485 Modbus RTU

• Response Time (T90): ≤30 seconds

• Operating Voltage: 9–24V DC

• Power Consumption: <0.5W

• Operating Temperature: -20°C to +50°C

• Humidity Range: 15–90% RH (non-condensing)

• Lifespan: ≥2 years in clean air