Device to Individually Meter Multifamily Water?

[Peter Jaglom]

I could have sworn I heard on a BP podcast episode that there is a device (or devices) you can attach to existing plumbing that effectively individually meters each unit of a multifamily property without actually separating and metering each unit, but I can't remember what it's called. Does anyone in the forums know what I'm talking about?

I'm just wrapping up negotiations on a 9-unit and would love to be able to install these to individually meter each unit. Any help would be much appreciated!

Thank you!