Just switched from Brita to the Zerowater jug and it is great. The water tester that came with it is not digital but when you put it into a glass of tap water it lights up, when you put it into a glass of Britta water it also lights up, but when you put it into the Zerowater is does not light up. I am assuming this is a good thing.

We do not buy bottled water, because there is way too much waste with it. Bottles are clogging up our land fill sites. We only use the Zerowater jug and it is great, no flavors or anything. Would highly recommend it.