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CO₂ Humidity and Temperature Sensor - SCD30

  • $99.00AUD
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  • CO₂ Humidity and Temperature Sensor - SCD30

    The SCD30 from Sensirion is a high quality NDIR based CO₂ sensor capable of detecting 400 to 10000ppm with an accuracy of ±(30ppm+3%). In order to improve accuracy the SCD30 has temperature and humidity sensing built-in, as well as commands to set the current altitude.

    SparkFun has written an Arduino library to make reading the CO₂, humidity, and temperature very easy. It can be downloaded through the Arduino Library manager: search for ‘SparkFun SCD30’ or it can be downloaded here. SparkFun recommend using a Qwiic Breadboard Cable to connect the SCD30 to a Qwiic compatible board. The YeLLow wire goes in the SCL pin. The SCD30 also supports a serial interface.

    The CO₂ sensor works very well and for additional accuracy the SCD30 accepts ambient pressure readings. SparkFun recommend using the SCD30 in conjunction with the Qwiic Pressure Sensor - MS5637 or the Qwiic Environmental Sensor - BME680 to obtain the current barometric pressure.

    Note: The SCD30 has an automatic self-calibration routine. Sensirion recommends 7 days of continuous readings with at least 1 hour a day of ‘fresh air’ for self-calibration to complete.


    • Power supply voltage: 3.3V - 5.5V
    • NDIR CO2 sensor technology
    • Integrated temperature and humidity sensor
    • Best performance-to-price ratio
    • Dual-channel detection for superior stability
    • Small form factor: 35 mm x 23 mm x 7 mm
    • Measurement range: 400 ppm – 10.000 ppm
    • Accuracy: ±(30 ppm + 3%)
    • Current consumption: 19 mA @ 1 meas. per 2 s.
    • Energy consumption: 120 mJ @ 1 measurement
    • Fully calibrated and linearized
    • Digital interface UART or I2C



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