I bought one of these last month.
http://www.aquachek.com/PublicPopups.as ... uct&PID=24
Since I have color vision impairment, test strips and drop tests are as useful to me as sticking my toe in the water.
Has anyone else used this? So far, it seems to work okay, but I'm not too sure about its accuracy.
I've been meaning to do a quick and dirty gauge repeatability and reproducibility study to see how well this works. Hopefully in the next week or two, and I'll post the results here.