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The SCD-40 CO2, temperature and humidity sensor module provides high accuracy readings. It is equipped with a Qwiic connector and communicates via an I2C interface. SparkFun SEN-22395
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The SCD-40 CO2, temperature and humidity sensor module uses Sensirion's PASens® photoacoustic measurement system, which combines narrow-band infrared light and a microphone inside the sensor housing, capable of detecting concentrations from 0 to 40000 ppm with a high accuracy of over ±(50 ppm+5%) in the range from 400 to 2000 ppm. Additionally, the system has an integrated temperature and humidity sensor, making it suitable for environmental sensing, scientific experiments and air quality studies. The SCD40 includes an automatic self-calibration procedure that adapts to the detection environment. It can work with systems with either 3.3 V or 5 V operating voltage, and communication is via an I2C interface (Qwiic connector). Full documentation with examples is available on the product page.
Data sheet
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The SCD-40 CO2, temperature and humidity sensor module provides high accuracy readings. It is equipped with a Qwiic connector and communicates via an I2C interface. SparkFun SEN-22395