I already own the Hanna dkh checker and absolutely love it. For someone like me who has a hard time with the color shading. Now there is no more guessing what the color shades are.
I liked the fact that I can read the number rather than comparing color chart. I"m currently using the Phosphate checker but would like to try to Phosphorus checker.
I just want to win something .... I never won a raffle in my life . But.... Hanna checkers for the win ! Tired of what shade of blue or pink or whatever !!!