Installation Guides
For water meters see manufacturer documentation wiki:
https://www.zenner.com/downloads_installation-instructions.html
For the Easy Protect Smoke Detector see the download section (navigation in german only, manuals in both english and german) at "Rauchwarnmelder":
https://www.zenner.de/support/downloadcenter/montageanleitungen.html
Uplink / Downlink Payload Decoding
For a description of the payloads please open a ticket with the order number.