DFRobot Gravity I2C Oxygen Sensor

DFRobotSKU: RB-Dfr-889
Manufacturer #: SEN0322

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Sale price ¥9,264

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  • Gravity I2C Oxygen Sensor
  • Based on electrochemical principles
  • Provides high sensitivity
  • I2C Interface
  • Compatible with both 3.3 V and 5 V microcontrollers
  • Polarity protection

The Gravity I2C Oxygen Sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently.

With high anti-interference ability, high stability, and high sensitivity, this Arduino-compatible oxygen sensor can be widely applied to fields like portable devices, air quality monitoring devices, and industries, mines, warehouses, and other spaces where air is not easy to circulate.

DFRobot Gravity I2C Oxygen Sensor - Click to Enlarge

  • 1 x Oxygen Sensor module
  • 1 x Gravity-4pin I2C Cable
  • 4 x M3*10 Nylon post
  • 8 x M3*5 Screws


  • 37 x 27 x 24.5 mm / 1.46 x 1.06 x 0.97 inches (L x W x H)
  • Detection of Gas: oxygen
  • Operating Voltage: 3.3 to 5.5 V DC
  • Output Signal: I2C output
  • Measurement Range: 0~25%Vol
  • Maximum Measurement limit: 30%Vol
  • Resolution: 0.15%Vol
  • Sensitivity: (0.10±0.05) mA (in the air)
  • Stability: <2% (Every month)
  • Repeatability: <2%
  • Response Time: ≤15 seconds
  • Operating Temperature: -20~50 °C
  • Operating humidity: 0~99%RH (no condensation)
  • Pressure Range: standard atmospheric pressure ±10%
  • Lifetime: > 2 years (in the air)
  • Weight: 0.037 kg

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