SCD40 gas sensor module detects CO2, carbon dioxide, temperature and humidity in one sensor I2C

The SCD40 gas sensor module is a compact Sensirion device that measures carbon dioxide (CO₂) levels from 400 to 2,000 ppm. It also includes built-in sensors to track ambient temperature and relative humidity, using an I2C digital interface for easy connection to microcontrollers like Arduino or Raspberry Pi