Do you want to be informed when you are receiving hard water instead of soft water?
With a simple WLAN sensor you can always be informed when there is a lack of soft water. The sensor monitors and alerts via email if there is too less salt or brine in the softener's salt/brine tank. Continuous mainenance work is thus reduced to a minimum. More information: https://bit.ly/2NhcZjAor in the video: https://youtu.be/1PF4sX6IGsM