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    SCD40 CO2 Temperature and Humidity Sensor Module I2C Robotics Bangladesh
    • SCD40 CO2 Temperature and Humidity Sensor Module I2C Robotics Bangladesh

    SCD40 CO2 Temperature and Humidity Sensor Module I2C

    RBD-4103

    The SCD40 is a digital carbon dioxide sensor module that measures CO₂ concentration using NDIR technology and also provides integrated temperature and humidity readings. It communicates via I2C and is suitable for indoor air quality monitoring, ventilation control, and environmental sensing applications.

    BDT 2,470
    BDT 2,470 BDT 2,470 BDT 2,470 BDT 2,470
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    5 Items

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    Description

    Short Description

    The SCD40 is a digital carbon dioxide sensor module that measures CO₂ concentration using NDIR technology and also provides integrated temperature and humidity readings. It communicates via I2C and is suitable for indoor air quality monitoring, ventilation control, and environmental sensing applications.


    Key Features

    • NDIR-based CO₂ measurement

    • Integrated temperature and humidity sensing

    • Digital I2C communication interface

    • Stable long-term performance

    • Compact module size

    • Suitable for low-power operation


    Technical Specifications

    • Sensor Model: SCD40

    • Sensor Type: CO₂, temperature and humidity sensor

    • CO₂ Measurement Range: 400 to 2000 ppm

    • CO₂ Accuracy: ±(40 ppm + 5% of reading)

    • Temperature Measurement: Integrated sensor

    • Humidity Measurement: Integrated sensor

    • Communication Interface: I2C

    • Operating Voltage: 2.4V to 5.5V

    • Interface Pins:

      • GND: Power ground

      • VDD: Power input

      • SCL: I2C clock

      • SDA: I2C data

    • Module Dimensions: Approximately 13.4 x 21.6 mm

    • Country of Origin: Made in China


    Applications / Use Cases

    • Indoor air quality monitoring

    • Smart ventilation and HVAC systems

    • Smart home and office automation

    • CO₂ monitoring in classrooms and meeting rooms

    • Environmental data logging

    • Embedded and IoT projects


    How to Use

    • Supply power to VDD and GND within the specified voltage range

    • Connect SDA and SCL to the microcontroller I2C bus

    • Read CO₂, temperature, and humidity data via I2C commands


    Package Includes

    • 1 x SCD40 CO₂ sensor module


    Notes / Warnings

    • Designed for indoor air quality applications

    • Allow sensor warm-up time for stable readings

    • CO₂ range is limited to the specified measurement span

    • Ensure proper airflow around the sensor for accurate measurement


    The SCD40 sensor module provides reliable CO₂ concentration measurement along with temperature and humidity sensing in a compact I2C module. It is well suited for indoor air quality monitoring and smart environmental control systems.

    Product Details
    RBD-4103
    5 Items

    Specific References

    EAN13
    4103
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