Every drop counts

25% less hot water
on every single shower.

The Molleaumètre is a connected water meter that screws onto the shower hose and displays the number of litres used in real time. A light ring changes colour as water consumption rises. The result: more than 25% less hot water on average, and up to 40% among the heaviest users, with no battery and no compromise on comfort.

Battery-free Behavioural science Proven results
The Molleaumètre, an IoT sensor with a light ring fitted to a shower hose On air France 2 · Télématin
Why Molleau
Six benefits that change everything for your showers.

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.

Who it is for
You are…

One technology, adapted to your priorities, your portfolio and your obligations. Here is what Molleau changes in each setting.

Preview of the Molleau dashboard for hotel operators
Hotels

Connected water meter: cut your water and energy bills without affecting guest comfort.

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 cut their consumption by up to 40%.

Reward good habits

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.

Built-in reporting for your certifications

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.

Return on investment within the first year

Water and energy savings cover the cost of the equipment within a few months. You track consumption and savings property by property, in real time.

Preview of the Molleau CSR report for residential portfolio managers
Social landlords & residence managers

Connected water meter: cut your water charges, with nothing imposed on tenants.

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.

No building work

Fitted onto each shower in a few minutes, with no building work.

Immediate awareness

83% of residents describe an immediate change in awareness. The heaviest users cut their consumption by up to 40%.

Water saving and carbon impact reporting

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.

Preview of the Molleau app for households
Home · Coming soon

At home, the connected water meter is coming soon.

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.

Real-time colour thresholds

A light ring that responds to every shower: simply making visible what was invisible until now.

Your trends and savings

See how much water you use, your trends over the week, and your savings in euros and litres.

Challenges and carbon footprint

Weekly challenges, savings in euros and your carbon footprint. Sign up now to be notified at launch.

Notify me at launch
Molleau on France 2 · Télématin A demonstration of the light ring and feedback from the pilot site.
Watch the feature
Trust & support
They trust us and support us.

Landlords rolling out Molleau across their residences, and the incubators and networks that have backed our growth from day one.

Hénéo In'li, Action Logement group Bpifrance BGE, support for entrepreneurs Matrice Willa La Ruche Les Canaux Wharton Alumni Club City of Paris Paris&Co Île-de-France Region
Let's talk
What would it look like for you?

Thirty minutes to estimate the savings potential across your portfolio and see whether Molleau fits your situation.

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