Israeli startup Lishtot just won the StartUp Open Israel 2015 competition run by the Global Entrepreneurship Network. It will now represent Israel in November’s global finals. Lishtot’s low-cost product detects water pollutants in a 5-second test, based on the electromagnetic properties of water.

http://www.globes.co.il/en/article-lishtot-to-represent-israel-in-global-contest-1001067704

https://www.youtube.com/watch?v=xtlglIfp7yQ   http://lishtot.com/?p=298

(See why this could be a vital product – https://www.youtube.com/watch?v=qWMRWngrZC8 )