Ok, i'm a newbie....but just to make sure when you say "rh" i'm guessing it stands for "room humidity" ? If that is the case i do have a temp/rh gauge in there that is wireless and does the min/max for the day, So like i stated in my first post, with no lights on or fans....it's 26.8 Celsius in there right now with a 34% humidity....So i know it would be different if i had plants in there...but i'm thinking if i have a thermostat that turns the fans on only when needed i'd be good night or day.....and if "watered plants" were in there now...i'm sure the humidity would be higher and at or close to the proper range..... correct?