Recommendation for CO2 sensor

Hardware
1

I will need to order a co2 sensor soon. I see there are plenty of compatible models in Mycodo?
Which one did you choose? Which ones can you recommend?

2

Hey, for what application?
I am using the SCD 30 that gets recommended really often. You could use the MHZ 19 B aswell, its half the price.

3

I use an SCD41. A little expensive but it’s very good.

4

Thanks for the advise!

5

If size doesn’t matter, i would go with the SCD30, almost same price.