This board is designed to dock with a BBC micro:bit via the edge connector of the micro:bit. The board is a genuine CO2 sensor that also measures temperature and relative humidity.
Features are:
Low power -- power directly from your micro:bit
CO2 0-5000ppm, temperature and relative humidity measurement
Has a makecode library to simplify programming
Please note that this product, although it has many of the same features as the MonkMakes CO2 for micro:bit, is based on a completely different sensor and is not a direct replacement for use in the Living Space project (changes will need to be made to the teacher's notes).