DFRobot Gravity: O2 Sensor (Calibrated) – I2C & UART


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SKU: 1283761
  1. Detection Gas: Oxygen (O2)
  2. Detection range: 0~25%Vol
  3. Working Voltage: 3.3~5.5V DC
  4. Working Current: <5mA


(inc GST)

₹ 7075.42 (+18% GST extra)

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Brand: DF Robot
Category: Gas and Dust Sensor

This is a sensor that detects oxygen 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 oxygen in the environment. Can be widely applied to fields like portable devices, air quality monitoring devices, industries, mines, warehouses, and other spaces where the air is not easy to circulate.

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 an oxygen concentration detector.

DFRobot has introduced 12 gas detection sensors in this series, CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF, which are used in exactly the same way and data format, so you can combine them according to your needs.


  • Air quality monitoring device
  • Mining air detection
  • Environmental protection
  • Smart Farming


  1. Strong anti-interference ability
  2. High stability
  3. High sensitivity


  1. Detection Gas: Oxygen (O2)
  2. Detection range: 0~25%Vol
  3. Working Voltage: 3.3~5.5V DC
  4. Working Current: <5mA
  5. Output Signal: I2C, UART (0~3V), analog voltage
  6. Working Temperature: -20~50℃
  7. Working Humidity: 15~90%RH (non-condensing)
  8. Storage Temperature: -20~50℃
  9. Storage Humidity: 15~90%RH (non-condensing)
  10. Lifespan: >2 years (in the air)
  11. Adapter Plate Size: 37*32mm
  12. Compatibility: Arduino, ESP32, Raspberry pi

Package Includes:

1 x DFRobot Gravity: O2 Sensor (Calibrated) – I2C & UART

SKU: 1283761 Category:

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Country Of Origin: China