Soil reads -3% because I took the probe out while watering and its still on top of the tent.
But look at the bar graph for temp and humidity.
Daytime temps avg 82-84, night is 75-76
Daytime RH is avg 59-60% and night it climbs to 67-68%
Really neat to see the graph and correlation. I could also see a rise in co2 when I was in the room (before I got the co2 bag), but now with the bag I see the co2 drops with lights off, and rises again with lights on… In all 4 graphs in the pic thats the prior 24 hours, so overlay them on each other in your mind to see the correlations. Neat stuff for sure, maybe a bit overkill for some, but I had fun assembling the system so far. Kinda like an erector set, but with cheap electronics 
ps. I scattered all sorts of hygrometers at various levels in both rooms this morning. When I go down there later I am curious to see what each reads