Just received one Ring Flood/Freeze Sensor yesterday & it was easy to add to my system. It was a little hard twisting open the unit to remove the battery strip. In the Ring app you know it’s connected when it says “cleared” like the zwave First Alert Smoke/CO detector shows up in system too.
https://www.amazon.com/Ring-Alarm-Flood-Freeze-Sensor/dp/B07M943G7L

