Ok guys, as well as my horticultural interests, I also keep coral reef aquariums. As I was thinking about my reef hobby the other day, it occurred to me that I have a controller on my reef that monitors water parameters and then automatically turns on and off different pieces of equipment in order to keep my parameters within the desired range I want. Do they make a unit like this that could measure humidity in a tent/grow room? A unit that could monitor both temperature and humidity would be awesome. If said controller could then switch on or off humidifiers, dehumidifiers, and fans to maintain the desired levels. Does such a controller exist? If so, how much do they go for and what are they called? Thanks.