Have been using scd30/31/40. Great sensors. This one requires a bit more power but would be interesting to see price as it seems it actually measured CO2. (A lo

Have been using scd30/31/40. Great sensors. This one requires a bit more power but would be interesting to see price as it seems it actually measured CO2. (A lot of other sensors simulate it with measuring alcohols and assume people breathing which gives poor results)