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Sutro’s Smart Monitor Takes the Hassle Out of Managing Your Pool

by | May 10, 2017 | Featured, Green Home

Summer is almost upon us, and that means one thing for the pool owners out there—you better have the best damn looking pool on the block. Your neighbor may have that beloved cantilever diving board all the kids want to use, but you’re going to have the majestic blue water that would make any Instagram model swoon.

Despite what the HOA for my condominium thinks, no one wants to swim in a green pool nor do they want to be overwhelmed by the smell of chlorine. Unfortunately—as the majority of pool owners know—maintaining a pool is expensive, imprecise, and above all laborious. Using unintuitive testing kits, a pool owner is expected to perform regular chemical tests armed with litmus paper and color charts. More often than not the results of these tests require a trip to the local pool supply store for specific chemicals that may not be on hand. If the chemical dosing is performed incorrectly, a pool owner might have to take additional trips to the store or might simply give up and wastefully dump their water. 

Thankfully, the good folks over at the San Francisco-based Sutro aim to put an end to all these headaches with their new Sutro Smart Monitor. This device—when dropped in a pool—measures pH, free chlorine, temperature, and alkalinity and sends a notification via the easy-to-use Sutro app whenever an action is needed. The app will then automatically order the exact chemical mixture required so a pool owner simply has to drop it in.

Simple, right?

The Sutro works in all types of pools (in-ground, above-ground, salt-water, jacuzzi, hot tubs, etc.) and runs on conventional batteries that need to be replaced every six months or so. The accompanying app works with all iOS and Android devices and allows for multiple users to be on the same account (for instance, if you have a dedicated pool service technician). 

See Also: FAFCO’s CoolPV Lets You Heat Water and Produce Electricity Using the Same Roof Space

Sutro is sleek, sexy, and guaranteed to leave you with a cleaner pool, more money in your pocket, and significantly fewer trips to the pool supply store (if any). Furthermore, the Sutro Smart Monitor is the first step towards addressing the much larger issue of water conservation in our homes and cities. 

After sitting down with Sutro’s Co-Founder and CEO Ravi Kurani at this year’s SXSW, it became apparent that there was a much larger vision that would take this initial product beyond residential and commercial applications and position it as a grander solution to measuring chemicals in drinking water and rivers and streams.

“Think of the Sutro system as an architecture to measure water chemistry for all applications (agriculture, swimming pools, drinking water),” said Kurani.  “If we can use the systems that exist today to predict and more efficiently use water, I think we all win.”


Recently named to Forbes prestigious “30 Under 30” shortlist, Kurani is no stranger to the pool industry. For the better part of his life, he’s had exposure to the issues of pool ownership having grown up with a father who owned several pool and spa stores in California.

“Our goal is to change the way that we’re looking and using water through actionable data. The whole point here is, how do you build a sustainable business, but then very quickly move to a model that is for the greater good”

The Sutro Smart Monitor is expected to start shipping as early as May 2017—just in time for summer. Pre-ordering the device generally runs about $399, but CleanFortunes readers can take advantage of the promo code “cleanfortunes20” to receive a 20% discount at

About The Author

Reed Crossley

A self-proclaimed 'solar evangelist,' Reed Crossley spent several years in the solar industry before embracing his inner (green)techie and starting CleanFortunes. When he isn't playing editor-in-chief and reading/writing about innovation in sustainability tech, Reed is usually out gallivanting around Austin in his Oru Kayak and/or championing global climate action. He's also definitely NOT wearing a fake mustache to impress his beloved readers.


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