i was looking at a hanna ph and temp meter at my lhs, but the drops sound alot more affordable right now. I am running a vortex 6" fan right now and i have a circulation fan inside the closet, so i am changing the air 5 times a minute i would say. i would love to duct some ac in there, but i didnt want to cause any smell issues, not like its a big deal but i do want it to be as inconspicuous as possible. thanks for your input.