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Heyl Cloud Härtewerte
The current hardness values from our test area can now be accessed online via our Heyl cloud.
The water hardness is measured every 15 minutes.
We also show a graphical review of our measurements of the last 24 hours.

Follow this link to our Heyl cloud (in cooperation with Deutsche Telekom)

Please use the following data for login:
Benutzername (user name): Demo
Passwort (password): Demo7890

Further german providers for current hardness values can be found at: (for Hildesheim) (for every german city)

http://www.wasserhä (for every german city)