Gravity NO2 Nitrogen Dioxide Sensor I2C and UART

The Gravity NO2 Nitrogen Dioxide Sensor from DFRobot is a precise, factory-calibrated sensor designed to measure nitrogen dioxide (NO2) in the air. With a measuring range from 0 to 20 ppm and the capability to communicate over analog, I2C, and UART output modes, this sensor provides a flexible solution for environmental monitoring projects, industrial applications, and more. The electrochemical measurement method ensures high accuracy, stability, and excellent interference resistance. An integrated temperature compensation and a threshold alarm enhance the reliability of the sensor. Thanks to compatibility with popular microcontrollers like Arduino, ESP32, and Raspberry Pi, the sensor can easily be integrated into existing systems.

Features:

• High precision and stability in NO2 measurement.
• Supports analog, I2C, and UART output modes.
• Longevity with a life expectancy of over two years.
• Strong anti-interference ability due to electrochemical principle.
• Easy integration thanks to the Gravity interface and compatibility with Arduino, ESP32, and Raspberry Pi.

Examples of Applications:

• Air quality monitoring in urban areas.
• Use in industrial process control for monitoring NO2 concentration.
• Environmental monitoring for detecting nitrogen dioxide pollution.
• Development of portable devices for air quality measurement.

Documentation:

• DFRobot Wiki

Technical Specifications:

• Manufacturer: DFRobot 
• Manufacturer SKU: SEN0471
• Detection Gas: Nitrogen Dioxide (NO2)
• Measurement Range: 0~20ppm
• Operating Voltage: 3.3~5.5V DC
• Operating Current: <5mA
• Output Signal: I2C, UART (0~3V), analog voltage
• Operating Temperature: -20~50℃
• Operating Humidity: 15~90%RH (non-condensing)
• Lifetime: >2 years (in air)
• Compatibility: Arduino, ESP32, Raspberry Pi
• Dimensions: 37 x 32 x 30mm
• Weight: 80.2g
  

Delivery Content:

• 1x Gravity NO2 Nitrogen Dioxide Sensor I2C and UART
• 1x Gravity IIC/UART Sensor Cable