It would be helpful to allow multiple flow sensors. In my current install, I have a rain harvesting system as a primary water source and municipal water as a secondary. The pump for the Rain Harvesting system and the master valve for the municipal water line is controlled by a three wire float.
I have the wireless flow sensor installed on the secondary water supply (municipal) primarily to notify me of leaks but would be handy to have this data as well as zone operations for the rain harvesting system.
I hope this becomes a function available for future installs.