I use FortrezZ’s zwave flow meter and certain smartapps/automations to turn off my Leaksmart water valve when flow is detected when I’m away, or for other flow conditions. Works great, and I’ve caught contractors using my water while I wasn’t home when our neighbor’s house was being build.
The DTH works great with the Classic app, and it works with the new app EXCEPT it’s a power/energy meter vs a water meter. The DTH needs to be rewritten for the new app’s capabilities, and I probably won’t have time to work on that for a long time. The good news is that even though the new app can’t leverage all those tiles that Classic has, the capabilities are still available and exposed in SmartApps and Automations.