cool idea for both those camping and those with water in the area that just isn't that drinkable. i'm curious about this. seems a very good idea.
This little gadget should be a necessity for an outdoorsmen. It will test any water source and give you a reading which indicates the drinkability of that water. I couldnt imagine a more useful took when going camping.
its small and can hold all my back up data, like the photoshop I did of a Unicorn riding a rainbow!