Cảm biến SO2 - DFRobot

This is a sensor that detects sulfur dioxide concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of sulfur dioxide in the environment. Can be widely used in the detection of sulfur dioxide in industrial and environmental protection fields.

The probe adopts the electrochemical principle, has the characteristics of strong anti-interference ability, high stability, high sensitivity, etc., and the service life is as long as two years. The sensor has 32 modifiable I2C addresses, an integrated temperature compensation algorithm, and a threshold alarm function, It has good compatibility with mainstream main control devices such as Arduino, ESP32, and Raspberry Pi. The easy-to-use Gravity interface, coupled with our sample code, can quickly build a sulfur dioxide concentration detector.

• Strong anti-interference ability
• High stability
• High sensitivity

• Industrial sulfur dioxide detection
• Environmental protection device

• Detection Gas: Sulfur dioxide (SO2)
• Detection range: 0~20ppml
• Working Voltage: 3.3～5.5V DC
• Working Current: ＜5mA
• Output Signal: I2C, UART (0~3V), analog voltage
• Working Temperature: -20～50℃
• Working Humidity: 15～90%RH (non-condensing)
• Storage Temperature: -20～50℃
• Storage Humidity: 15～90%RH (non-condensing)
• Lifespan: >2 years (in the air)
• Adapter Plate Size: 37*32mm
• Compatibility: Arduino, ESP32, Raspberry pi

• Product wiki

• Gravity: SO2 Signal Conversion Board x1
• SO2 sensor probe x1
• Gravity - 4pin Cable x1