People have been enjoying pools for thousands of years – and struggling with maintenance for just as long. With more than 10 million residential pools and 300,000 public pools in the U.S. alone, that adds up to a lot of wasted time, money, and chemicals.
Sutro founder Ravi Kurani grew up in the pool industry and saw firsthand how the burden of constant maintenance can take the joy out of ownership. Drawing on experience in water monitoring systems for rural communities, he knew IoT technology could eliminate the guesswork, reduce waste, and bring peace of mind to pool owners everywhere.
The Sutro Smart Monitor floats in a pool or spa, quietly measuring water quality around the clock. Hidden inside its minimalist design are advanced sensors that track key chemical values like pH, chlorine, and alkalinity.
Data flows to the Sutro hub and up to the cloud, where Sutro’s AI makes recommendations in real time. Through the Sutro app, owners know exactly when and how to add chemicals, customized to their preferred pool chemistry. And if help is needed, Sutro’s partner network is just a tap away.
Not every pool is within Wi-Fi range, and institutions like gyms, schools, and hotels often can’t provide network access. Soracom Air ensures Sutro devices stay connected anywhere with reliable cellular coverage.
But connectivity is only part of the story. Sutro also uses Soracom Krypton to handle secure, remote device provisioning and credential management. This not only accelerates manufacturing and deployment but also ensures compliance with California’s IoT security requirements.

Sutro is committed to making pool ownership easier and safer, starting with its Summer 2019 product launch. But the opportunity goes far beyond pools and spas.
Sutro’s patented sensor technology can be adapted to monitor water quality anywhere it matters, from municipal reservoirs to irrigation systems. Looking ahead, Sutro aims to ensure not just safer swimming, but safer drinking and farming worldwide.