The temperature graph is pretty easy to understand as you see the A/C kick on twice during the day. The CO2 level is maybe not as obvious but I can see when I was in this room and when I closed the window when I was leaving.
I imagine co2 not being perfectly mixed and maybe wafts of it hitting the sensor? The overal trend is clear though. Try transforming the data with a moving hour average or something.
The temperature graph is pretty easy to understand as you see the A/C kick on twice during the day. The CO2 level is maybe not as obvious but I can see when I was in this room and when I closed the window when I was leaving.