Day 4 on the Eleonore

By Karl Heinz Jeron • 4 Jul 2011

Healthy water
With the eSHa Aqua-Quick-Test  you can monitor five values which are crucial for good water quality:
acidity, carbonate hardness, general hardness, nitrite and nitrate.
A micorcontroler messures the changing colour of the test strip with the help of a RGB senser.