its just a PH meter, im going to purchase a ppm or combo meter soon here, working on my humidity and temperature problems right now. I just got my temp to low. have one fan blowing inside, and an exhaust fan. i thought i'd never get it down from 100, but i jus came back and its dropped to the high 80's so i plan on getting one of these
http://www.buysku.com/wholesale/por...rsonal-fan-random-color.html?welcome=11150022
to control my temp problems.
my distilled water, and my tap water read the same PH of 8.5. i think that rules out my meter. idk. i figured the tap would be more acidic.