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DFRobot Gravity Electrochemical Oxygen Sensor (0-100%Vol) – I2C

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11,901.35 (Including tax)

  1. Brand: DFRobot
  2. Product: Electrochemical Oxygen Sensor (0-100%Vol) – I2C
  3. Physical Quantity Detected: Oxygen concentration
  4. Measuring Range: 0~100%
  5. Working Voltage: 3.3~5.5V DC

Discount per Bulk Quantity

5 - 105%11,306.28 (Including tax)
11 - 2010%10,711.22 (Including tax)
21 - 4015%10,116.15 (Including tax)
41 - 10020%9,521.08 (Including tax)
  • Estimated delivery time 2-4 days
  • (Subject to stock Availability)
SKU: rz24310068

Product details

This full-scale oxygen sensor employs the original AO2 CiTiceL oxygen sensor probe and features a measurement range of 0-100%Vol and I2C digital output, which can be adapted to application scenarios including oxygen generators, automobile exhaust, and air-fuel ratio detection.

The DFRobot oxygen sensor has a built-in calibration algorithm on the signal board that can quickly perform single-point or double-point calibration so as to accurately measure the oxygen concentration in the environment. Based on the principle of electrochemistry, the sensor probe comes with strong anti-interference ability, high stability and sensitivity, and up to two years of service life. It is compatible with mainstream controllers such as Arduino, ESP32, Raspberry Pi, etc. Besides, the sensor is designed with an easy-to-use Gravity interface, and with our sample codes, you can quickly build an oxygen detector.


  1. Strong anti-interference ability
  2. High stability and sensitivity
  3. Compatible with Arduino, ESP32, Raspberry Pi

Package Includes:

1 x DFRobot Gravity Electrochemical Oxygen Sensor (0-100%Vol) – I2C

Additional information

Detection Gas

Oxygen concentration

Detection range


Working Pressure Range


Working Voltage

3.3~5.5V DC

Output Signal

I2C, UART (0~3V), analog voltage


>2 years (in air)

Working Humidity Range

0-99% RH (non-condensing)

Working Temperature Range (°C)

-20°C ~ +50°C

Product Dimensions

32mm x 27mm/1.26 x 1.06 inch

Response Time ( μS)


Mounting Holes Diameter (mm)

inner diameter 3.1mm(0.12 inch)/outer diameter 6mm(0.24 inch)

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