The Test Kit of The 21st Century.

The Smart Monitor accurately tests your pools chemical levels 24/7 and translates the data into clear instructions for what chemicals are needed and when.

Find out if Sutro is available in your area.

The App. The Device. The Solution.

Smart Pool Chemistry Monitor

The device floats in your pool and tracks your chemical levels 24 hours a day. The device is paired with the Sutro App, which will alert you when action is necessary.

Partner Integrations

Sutro is integrated seamlessly with Amazon Prime and Amazon's Alexa, making it easy to order chemicals, equipment, and pool accessories. Please do not hesitate to suggest other integrations that would make your pool owning experience easier!


Service Technician Network

Away for vacation? Need your heater replaced? Sutro's network of pool technicians are there to save the day. You can always text "HEY" to (415) 299-8082 for help finding a certified technician near you.

Flexible Chemical Delivery

Our customers always have the option to use their own chemicals. However, Sutro offers front-door chemical delivery for anyone who prefers automated delivery, or the pay-as-you-go option. We don't believe in limiting our customers with subscriptions they don't always need.

Pool & Spa Tips & Tricks

23 Mar
The Smart Way to Open Your Smart Pool This Spring
Spring is nearly here and that means it's time to start preparing to open your pool from its winter rest. You know you'll want to...
16 Mar
Amazon Partnerships Mean Automated Pool Sensors Meet Automatic Chemical Ordering
Amazon has been making all kinds of headlines lately with its Dash Replenishment Service and Alexa voice recognition devices. Already the king of convenience when...
24 Feb
Making Your Pool a Smartpool
Automation and remote monitoring are the wave of the future, all brought to us by the "Internet of Things" that has Silicon Valley's investors and...
17 Feb
Wi-Fi or Pool Guy? Making Pool and Hot Tub Maintenance Easy
Owning a pool or hot tub/spa is a lot of fun, but maintaining them isn't always easy.  Large bodies of water—even when they're only as...
11 Feb
El Niño an Pool Care: What You Need to Know
The rain that's been dropped on California recently is a mixed blessing. The drought-stricken state has been in need of this moisture for years, and...
03 Feb
Automate Your Pool Chemical Monitoring and Save Big Bucks
Sometimes gadgets end up costing us more than they're worth (I'm looking at you, laserdisc player). They look cool on the surface, and you imagine...
27 Jan
Pool Safety Tips When the Grandkids Come Visiting
According to the CDC, close to 700 children under the age of 14 drowned in pools each year between 2005 and 2009, and five times...
21 Jan
WiFi Enabled Hot Tub Sensors Let You Really Relax in Your Spa
Many hot tub and spa owners consider their purchase some of the best money they've ever spent. There's nothing quite like sinking into a giant...
13 Jan
Does My Pool Add Value to My Home?
Your pool is a great benefit to your health and adds tons of enjoyment to your life, but as you well know—especially if you built...
05 Jan
Our Favorite Pool-Cleaning Gadgets
We're all alittle gadget-crazy here at Sutro—we sort of have to be if we're going to make the coolest smart pool automation gadgets around.  We...
22 Dec
How Long Should You Soak in a Hot Tub?
The post How Long Should You Soak in a Hot Tub first appeared on Swim University.  Soaking in a hot tub is hands down one...
16 Dec
Do I Need to Monitor My Pool Over the Winter?
Unless you are lucky enough to live in a part of the US that stays warm enough to use your outdoor pool year round, you'll...
15 Dec
How to Heat a Hot Tub Quickly and Efficiently
The post How to Heat a Hot Tub Quick and Efficiently first appeared on Swim University. One of the questions we hear quite a lot...
09 Dec
5 Must Haves For a Smart Pool
You have a pool, but do you have a smart pool? Today's technology allows you to take pool maintenance to a whole new level, automating much...
08 Dec
Teach Your Kids How to Take Care of the Swimming Pool
The post Teach Your Kids How to Take Care of the Swimming Pool first appeared on Swim University. I don’t think I have ever met a...
02 Dec
Automate Your Pool for Worry-Free Maintenance
You've probably heard loads of news about the new "smart home" devices. From door locks to thermostats, light bulbs to the kitchen sink, there are...
25 Nov
Winter is Coming: Is Your Spa Ready?
The colder months make the joys of owning a hot tub or spa that much greater—nothing beats slipping into the hot water when the temperature...
17 Nov
Monitoring Pool Chemicals: The Basics
Having a backyard pool or hot tub is awesome, but all of the chemical monitoring can seem really complex and time consuming. What's the deal...