In typical applications, we believe that SCO2-1 (SCD40) is sufficient for most needs. However, as a more advanced product, SCD41 offers several enhancements over SCD40, including:
- The measurement range has been expanded from 0–2000 ppm to 0–5000 ppm.
- The accuracy has been optimized from ±(50 ppm + 5% of the reading) for 400–2000 ppm to a segmented accuracy: 400–1000 ppm is ±(50 ppm + 2.5%),±(50 ppm + 3%) for 1001–2000 ppm, and ±(40 ppm + 5%) for 2001–5000 ppm.
- Additionally, there are power-saving optimizations, including support for low-power cycle measurement and single-shot mode (Single Shot). However, since we do not use battery mode, this feature can be ignored.
- Furthermore, the SCD41 has been certified to meet multiple indoor air quality (IAQ) standards, including EN50543, RESET, and California Title 24.
Based on our familiar C3 architecture and the stable circuit design on the SCO2-1, we have redesigned a simplified housing, placing the SCD41 inside the housing and designing ventilation holes on the top.
As before, due to the heat generated by the ESP32, there may be slight temperature interference, but in our tests, this does not appear to have a significant impact on the measurement results.
In summary, this is just the beginning. We welcome you to join us on this adventure.
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