Non-invasive ultrasonic water submeters with cellular connectivity. No plumbers, no Wi-Fi. Recover water costs, detect leaks, and boost NOI in minutes.

SimpleSUB Water makes water submetering fast and affordable for properties of all sizes
SimpleSUB Water's flow meters clamp on in minutes. No plumbers. No pipe cutting. With built-in cellular and a 10-year battery, there's no need for Wi-Fi or external power.
Get instant alerts before small leaks become expensive bills or repairs. Protect vacant units, aging infrastructure, and off-site properties without manual checks.
Usage-based billing with 100% ± 5% accuracy lets people pay for what they actually use.
Slash utility losses and recover costs fast without major upgrades to boost cash flow and increase property values.
Maine property owners are facing real pressure to manage water more carefully. Rising utility costs, aging infrastructure, and a mix of harsh winters and wet seasons make it risky to guess where your water is going. Submetering gives you clear, unit-level insight so you can control costs, reduce waste, and keep your communities running smoothly.
Maine’s properties are as varied as the landscape. From coastal apartment buildings in Portland and South Portland to older triple-deckers in Lewiston, lakefront HOAs, mobile home communities, and small-town rentals, plumbing setups can look very different from one site to the next. SimpleSUB is designed to adapt to that variety.
Long winters, heavy snow, and freeze–thaw cycles are part of life in Maine. Our clamp-on meters are built to perform reliably through cold conditions, and the over-the-pipe design helps you measure lines in basements, crawlspaces, and utility rooms where retrofitting inline meters would be difficult or expensive.
Many Maine properties also have their own quirks, like separate outbuildings, long service runs between units, scattered mechanical rooms, or mixed-use main streets with apartments above retail. SimpleSUB’s cellular, clamp-on devices are built to handle those realities with flexible placement and minimal disruption to your existing plumbing.
A lot of “wireless” systems still depend on on-site Wi-Fi, repeaters, or custom network gear that someone has to set up and maintain. SimpleSUB works differently.
Each meter connects directly to the cellular network and sends data straight to the cloud, with no gateways, bridges, or property-wide Wi-Fi required.
That means:
This setup reduces complexity, cuts down on potential failure points, and helps keep everything running smoothly, from oceanfront properties to wooded communities where Wi-Fi can be limited or inconsistent.
SimpleSUB is designed so your maintenance team, plumber, or preferred contractor can get up and running quickly. The clamp-on hardware mounts on the outside of the pipe, so you’re not cutting into lines or doing major construction just to start measuring.
Once the meters are in place, the web app is straightforward and easy to navigate. You can see usage by unit, review historical trends, and add more meters over time as you expand coverage across your property or portfolio. You do not have to overhaul your entire system on day one to start getting value.
SimpleSUB hardware is designed and built in the United States, with a focus on reliability and long-term performance. You are working with equipment built for real-world conditions, not just lab tests.
When questions come up, you can reach a US-based support team that understands both the product and the realities of managing properties like yours. You get practical help, clear answers, and a partner that speaks your language.
Properties across Maine already rely on submetering to improve water accountability, spot leaks faster, and simplify day-to-day water management. Whether you manage an apartment building in Portland, an HOA near the lakes, or a mobile home community in a rural town, SimpleSUB gives you a simple, reliable way to submeter water in Maine.
SimpleSUB: Maine's most trusted partner for simple and connected submetering.
SimpleSUB Water provides water submeters to Maine's major cities and communities

Portland
Lewiston
Bangor
South Portland
Auburn
Biddeford
Sanford
Saco
Westbrook
Augusta
Waterville
Presque Isle
Orono
Brunswick
Bath
Ellsworth
Caribou
Skowhegan
Rockland
Kennebunk
... and many more!
Disclaimer: SimpleSUB’s water submetering and billing features may not be permitted in all states or local jurisdictions. You are solely responsible for ensuring that your use of any billing or cost-recovery tools complies with all applicable laws and regulations in your area. Nothing on this page (or elsewhere on our site) should be considered legal advice. You should consult your own legal counsel before implementing any billing practices.
Our innovative solution combines the i1, x1, or x2 Flow Meter with a unique web app to deliver precise water usage data through a new calibration process.
Works on Different Kinds of Pipe:




From garden-style communities to mid-rise buildings, owners and managers use SimpleSUB to recover rising water costs, detect leaks, and simplify utility billing across entire portfolios — without plumbing changes or added staff.

Stop absorbing water costs for your whole portfolio
• Recover up to 95% of water costs
• Prevent surprise leaks and damage with real-time alerts
• Boost asset value with ESG-aligned upgrades

Get fair, equitable water bills without disputes
• Reduce member disputes over shared utility bills
• Lower operating budget by identifying inefficiencies
• Extend property lifespan with proactive leak detection

Works in the most remote, scattered lots
• Recoup thousands in water costs
• Avoid infrastructure upgrades with non-invasive installs
• Reduce headaches from manual reads and overages

Split water costs fairly amongst tenants
• Allocate utility costs accurately between tenants
• Minimize revenue loss from undetected overuse
• Avoid legal issues from inaccurate shared billing

Boost cash flow quickly
• Increase cash flow without raising rent
• Reduce disputes with accurate, automated billing
• Install in hours without contractors or tenant notice

Cut water costs while staying compliant
• Enable equitable water billing
• Avoid high repair bills from undetected leaks
• Unlock grants and incentives for sustainability upgrades
From 5 units to 5,000, owners trust SimpleSUB to take control of water costs. Real results from real property owners — saving money, stopping leaks, and billing accurately without retrofits.








We’ll design an affordable, easy-to-install solution for your submetering project, large or small.