Gravity: SCD41 Infrared Carbon Dioxide / CO2 Sensor

SKU: SEN0536

The SCD41 CO₂ sensor module is built around Sensirion’s miniature SCD41 sensor and utilizes the photoacoustic NDIR sensing principle along with Sensirion’s patented PAsens® and CMOSens® technologies to deliver high accuracy in an ultra-compact and cost-efficient form factor. It integrates temperature and humidity sensing for on-chip signal compensation, and both parameters can be read directly as outputs. This module is ideal for indoor CO₂ concentration monitoring, greenhouse environmental control, and smart ventilation or air-quality management systems.

Front of SCD41 I2C CO2 sensor with labeled components and SMA connector.-DFRobot product sku:SEN0536 image.
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  • Specification

    Parameter Value
    Power Supply 3.3V to 5V
    Average Operating Current <4 mA
    I2C Address 0x62
    Product Size 32 × 27 × 8 mm

    CO₂

    Parameter Value
    Accuracy ±(40 ppm + 5% MV)
    Measuring Range 400 – 5000 ppm
    Response Time 60 s

    Humidity

    Parameter Value
    Typical RH Accuracy ±6% RH
    Measuring Range 0 – 95% RH
    Response Time 120 s

    Temperature

    Parameter Value
    Typical Accuracy ±0.8 ℃
    Measuring Range -10 – 60 ℃
    Response Time 120 s

    Pinout

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

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