O2 Sensor – Electrochemical Oxygen – Gravity – (0-25%Vol, I2C)

, ,

C-3, R-2 , I-2


Product ID: 20746 SKU: SEN-20746 Categories: , , Tags: , , ,


This Oxygen / O2 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 / O2 sensor can be widely applied to fields like portable device, air quality monitoring device, and industries, mines, warehouses and other spaces where air is not easy to circulate.

This compact dfrobot oxygen / O2 sensor supports I2C output, it can be calibrated in the air, can accurately measure the oxygen concentration in the environment. It is compatible with many mainboards like Arduino Uno, esp32, Raspberry Pi and so on. Its measurement range is 0~25%Vol, and resolution can reach to 0.15%Vol. It supports wide range input voltage: 3.3V to 5.5V. Moreover, the lifetime is as long as 2 years. With simple Gravity interface and practical sample code, you can build your own oxygen / O2 concentration monitor easily and conveniently.


  • High sensitivity
  • I2C Interface
  • Compatible with both 3.3V and 5V micro-controllers
  • Polarity protection


  • Detection of Gas: oxygen / O2
  • Operating Voltage: 3.3 to 5.5V 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℃
  • Operating humidity: 0~99%RH (no condensation)
  • Pressure Range: standard atmospheric pressure ±10%
  • Lifetime:> 2 years (in the air)
  • Dimension(L x W x H): 37 * 27 * 24.5 mm/1.46 * 1.06 * 0.97 inches
  • Weight:0.037kg

Package List:

  • Gravity: Electrochemical Oxygen / O2 Sensor (0-25%Vol, I2C) *1
  • Gravity-4pin I2C Cable *1
  • M3*10 Nylon post *4
  • M3*5 Screws *8



There are no reviews yet.

Be the first to review “O2 Sensor – Electrochemical Oxygen – Gravity – (0-25%Vol, I2C)”

Your email address will not be published. Required fields are marked *

You may also like…