Aeotec Water Sensor 6 ZW122

First thing you need to do: install Zulu version 8, openHAB does not (yet) run with java version numbers higher than 8, see the docs:
https://docs.openhab.org/installation/index.html#prerequisites

If your device is not properly initialized you need to switch to the snapshot or development version of the zwave binding (your are using the stable), please search the forum on how to do that.

Have fun.

Edit: regarding your efforts :grinning: to use code fences, see this tutorial: