Products · Rivus
Rivus. Water sub-metering for large residential complexes.
Rivus by Plasmiam is a water sub-metering platform for installers and sub-metering service providers: it reads the cold and hot water meters of large residential complexes over LoRaWAN, keeps meters and gateways under control and splits the water bill between the units.
For: Installers and sub-metering service providers
The problems Rivus solves.
Meters that stop talking
Which meter has not sent its reading, which battery is running down, which gateway covers which floor: one map of the whole complex instead of a site visit.
Splitting the bill
A fixed share by ownership thousandths, a consumption share by meter, the unmetered cubic metres (main meter minus sub-meters) and hot-water heating charged to those who use it, exported as CSV.
Leaks inside the complex
The utility meters only the inlet: water lost inside is paid by the residents. Rivus flags leaks from the night-time minimum flow.
In the demo
What you see in the demo.



How it works
What is inside.
- Cold and hot water sub-meters and building main meters with LoRaWAN radio, read through gateways in the complex.
- Registry of units, meters and gateways, with signal, battery and last check of every meter.
- Allocation per period, ready to send, with export.
- Leak location with pressure and flow sensors compared against a hydraulic model of the network: in development.
Standards
The references we work with.
- UNI 10200
- Italian standard for allocating heating and domestic hot water costs in shared buildings: the reference for the hot-water share of the bill.
- D.Lgs. 102/2014
- Italian decree implementing Directive 2012/27/EU: individual metering of heating, cooling and domestic hot water in multi-unit buildings.
- Art. 1123 Codice civile
- Italian Civil Code: shared expenses split by ownership thousandths or by use; the basis of the fixed and consumption shares.
- Directive 2014/32/EU (MID)
- Measuring Instruments Directive: the framework for the water meters placed on the market.
- EN ISO 4064
- Water meters for cold potable water and hot water: the metrological reference for the meters Rivus reads.
Questions
Frequently asked questions.
Who is Rivus for?
Installers and companies that run sub-metering for residential complexes: one view of every complex they look after, from the meters to the bill split.
Which meters does Rivus read?
Water meters with a LoRaWAN radio, through gateways installed in the complex. Tell us which meters you install and we will check them.
Is the demo on real data?
No. It runs on a simulated residential complex of 4 buildings, 92 units and 188 meters, with more than a year of daily readings.
See Rivus on your case.
Tell us a few details: within 2 working days we set up a call and show you the demo, on simulated data.
Request a Rivus demo