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> SCD41 - CO2, Temperature and Humidity Sensor
SCD41 - CO2, Temperature and Humidity Sensor
High accuracy photoacoustic CO2 sensor by Sensirion, typically 50ppm + 5%, measurement range 400-5000 ppm, -10~60°C and 0-100% RH. 3-5V logic and power, I2C communication, board size 13.4x21.6 mm.
The AHT20 is a nice but inexpensive temperature and humidity sensor from the same folks that brought us the DHT22. You can take sensor readings as often as you like, and it uses standard I2C so its super easy to use with any Arduino or Linux/Raspberry Pi board.
Module is based on BME280 sensor, supports both I2C and SPI interface, power and logic level 3.3 V, operating range -40…+85 °C, 0…100 % RH, 300…1100 hPa, board size 15x11.5 mm.