link? because as afar as i know it is ONLY possible to meassure chlorine in water in a chemical way (drop test liquid). Most cheap "chlorine test advertisements" only meassure parts per million in the water which excludes chlorine! ... Thats the issue. Still like to check out the product you say.
Discussion
i have that one already, and it works the way i described and isnt accurate.... it meassures parts per million.
That's the cheapest one I found, there are other models though in a higher price range though, should get you started :)
the cheapest working one that is accurate i found was 14k USD... for that ammount i am happy to do weekly a manual test, even i would like to have the test daily...
I'm training on pool cleaning, and my boss says the drops are cheap easy and fine. But strips and handheld probes work too, so its up you really. Have fun :)