The Molleaumètre is a connected water meter that clips onto the mixer tap or screws onto the hose (½″ thread), depending on the installation and displays the number of litres used in real time. A light ring changes colour as water consumption rises. The result: 23% less hot water on average, and up to 61% observed among the heaviest users, with no battery and no compromise on comfort.
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Raise awareness and engage
Immediate, lasting awareness on every shower. The environmental transition starts with everyday habits.
Lasting, measurable savings
A lower bill and a fast return on investment, while preserving occupants' comfort.
Environmental performance
Continuous, quantified evidence you can use directly in your certifications and eco-labels.
Behavioural impact
Residents and guests who adopt greener habits without being told to.
Immediate results
Savings show up as soon as the devices are installed, with simple oversight for your teams.
No building work
Quick, non-invasive and reversible installation. No structural change to the shower.
One technology, adapted to your priorities, your portfolio and your obligations. Here is what Molleau changes in each setting.
The Molleaumètre fits onto each shower in a few minutes. In the room, real-time visual feedback naturally guides guest behaviour.
The heaviest water users save the most: up to 61% observed.
Offer a coffee at the bar to your most frugal guests. You turn restraint into a positive experience, bring life to your food and drink areas, and strengthen your environmental credentials.
Every Molleaumètre sends consumption data to your dashboard automatically. You monitor all your properties in real time and export the reports your audits and eco-labels require.
Estimate your own case in the calculator. You track consumption and savings property by property, in real time.
In your residences, water use is largely invisible. Molleau acts directly on the single largest source of consumption, the shower, without changing residents' comfort.
What residents say about it: “a benchmark”, “awareness”, “taking responsibility”. Nothing imposed.
Fitted onto each shower in a few minutes, with no building work.
83% of residents describe an immediate change in awareness (one-month survey of equipped residents, November 2025 to July 2026). The heaviest users save the most: up to 61% observed.
The shower units send their data to your dashboard. Before and after comparison by home and by site, savings converted into euros and tCO₂e, and exports ready to drop into your CSR reports.
A consumer version of the Molleaumètre is on its way. The same device and the same light ring, paired with an iOS and Android app that tracks your showers in real time.
A light ring that responds to every shower: simply making visible what was invisible until now.
See how much water you use, your trends over the week, and your savings in euros and litres.
Weekly challenges, savings in euros and your carbon footprint. Sign up now to be notified at launch.
Landlords rolling out Molleau across their residences, and the incubators and networks that have backed our growth from day one.
Molleau on Le Pitch, BFM Business.
The light thresholds, eight months of measurement in a residence and the funding round ahead, with Brigitte Boucher.
Read the article →Winner of the Jury's Favourite award for entrepreneurial innovation.
An award from the City of Paris for the way we tackle an everyday subject: how much water we use in the shower.
Read the article →Twice honoured at 101 Women Entrepreneurs.
At the ceremony held at Matignon, Molleau won the Paris award and was named Île-de-France Jury's Favourite by the jury.
Read the article →Thirty minutes to estimate the savings potential across your portfolio and see whether Molleau fits your situation.
