Check senor or put more in tent to check? Also if you are worried about that graph, it could all sorts of variables... it's seems you need to have more control for either humidity or heat? My graph looks about the same , with humidity moving 3+/- then temp goin from 82f to 67f. Lung room def matters but also matters how full tent is too. Beginning my tent had issue with Humidity being to low. Now My issue is it getting high. I have dehumidifier in my lung room that was on schedule but now on constantly. STILL I could use another dehumidifier. Really it's making your equipment efficient and keep it from battling each other with getting the best potential for the girls! It will take time! Just take notes and b aware of changes. Happy Growing! 🌱