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.
Hawaii property owners are facing growing pressure to manage water carefully. Between rising utility costs, aging infrastructure, heavy storms, and periodic dry spells, you can’t afford 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.
Hawaii properties are unique, with everything from high-rise condos near the shoreline to low-rise apartment communities, townhouse HOAs, and scattered building clusters serving extended families or multi-generational living. Plumbing often winds through older structures, courtyards, and utility closets that were never designed with modern metering in mind.
Humidity, salt air, and intense storms are part of everyday life across the islands. Our meters are designed for reliable performance in real-world conditions, and the over-the-pipe design lets you measure lines that would be difficult or expensive to retrofit with inline meters.
Hawaii properties also come with their own quirks, like separate buildings on a single parcel, long runs between buildings, mixed-use spaces beneath residential units, and utility rooms tucked into tight corners. 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, even in properties with thick concrete walls, multiple buildings, or inconsistent Wi-Fi coverage.
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 the property. You can start small on one building or section, then grow at your own pace as you see the value.
SimpleSUB hardware is designed and built in the United States, with a focus on reliability and long-term performance. You’re 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 Hawaii are turning to SimpleSUB for accurate water tracking, faster leak detection, and easier day-to-day water management. Whether you manage an urban condo building, a townhouse community, or a collection of low-rise apartments across multiple structures, SimpleSUB gives you a simple, reliable way to submeter water in Hawaii.
SimpleSUB: Hawaii's most trusted partner for simple and connected submetering.
SimpleSUB Water provides water submeters to Hawaii's major cities and communities
Honolulu
East Honolulu
Pearl City
Hilo
Kailua
Waipahu
Kaneohe
Mililani Town
Kahului
Ewa Gentry
Kihei
Makakilo
Schofield Barracks
Wahiawa
Kailua-Kona
Lahaina
Wailuku
Kapolei
Ocean Pointe
Royal Kunia
... 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.
"SimpleSUB Water was the perfect solution for our needs. From installation to completion, the team was incredible. What could have been a daunting, major project turned out to be so easy thanks to their support. It’s truly a ‘set it and forget it’ solution!"
"There is huge cost savings in not only labor during installation, but also in metering water usage and identifying leaks. SimpleSUB’s feature-light and benefit-heavy design makes it a breeze to use while delivering powerful results."
"We were quoted $50,000 for a plumber to install inline meters, which was completely out of our budget. SimpleSUB’s solution cost a fraction of that—under $400 per unit with a small monthly subscription—and provided the same accurate data with much less hassle."
We’ll design an affordable, easy-to-install solution for your submetering project, large or small.
