Calliope manufactures the SCD40 air quality sensor, featuring high accuracy and reliability. This PCB extension board is compatible with systems like Arduino, Raspberry Pi, and BeagleBone, making it versatile for various projects. It is ideal for monitoring indoor air quality in smart home applications and environmental sensing. https://elecena.pl/product/28835913/calliope-scd40-mini-co2-sensor-measures-co2-temperature-humidity 2025-05-27 https://elecena.pl/product/28835913/calliope-scd40-mini-co2-sensor-measures-co2-temperature-humidity 2026-09-01