Gravity: Electrochemical Oxygen / O2 Sensor (0-25%Vol)

SKU: SEN0322

The Gravity: I2C Oxygen/O2 Sensor uses electrochemical principles to accurately measure ambient O2 concentration. It features high anti-interference, stability, and sensitivity, compatible with Arduino, ESP32, Raspberry Pi, etc. Supporting I2C output, it calibrates in air, with a range of 0~25%Vol and resolution 0.15%Vol. Voltage: 3.3V-5.5V, lifespan 2 years. With Gravity interface and sample code, build O2 monitors easily. Applied in portable devices, air quality monitoring, industries, mines, etc.

Front of DFRobot electrochemical O2 sensor module for oxygen detection-DFRobot product sku:SEN0322 image.
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  • Specification

    Parameter Value
    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

    Pinout

    Num Label Description
    1 SDA I2C System Data Line
    2 SCL I2C System Clock Line
    3 GND -
    4 VCC +

    FAQ

    • The sensor data is turbulent and fluctuates greatly.

      This phenomenon may be caused by the unstable input voltage of the power supply pin of the sensor, please replace the regulated power supply or external power supply input.

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