How it works

The Sutro Smart System is the Simple, Safe, and Seamless way to ensure that your pool (or spa) is ready when you are. Our patented smart water monitoring technology takes the hassle out of pool or spa water maintenance.
With Sutro, you can measure, monitor, and get recommendations on treatment options without having to leave the comfort of your home. With Sutro, you get what you need, when you need it, from partners that you trust.
Sutro Smart Monitor
Simply place the Sutro Smart Monitor in your pool or spa. It has all that it needs to measure your pool or spas chemistry. Once a measurement is done, the Smart Monitor will send the information to the smart hub and then to your phone.
Your Waters Condition
The power of the Sutro Smart Water System is that it allows you to see the condition of your water in real-time on your phone. This monitoring allows the Sutro system to warn you before things go astray. This capability will give you peace of mind that the Sutro Smart Water System is making sure that your water is safe to swim in.
Trusted Recommendations
We make sure that all our recommendations are based on the chemicals you’re comfortable with. Our Sutro partnership network ensures that you’ll have the piece of mind to know that if you run out of something or have a question, one of our local partners can help. With Sutro, you’ll know what you need, when you need it, from partners you trust.
Simply place the Sutro Smart Monitor in your pool or spa. It has all that it needs to measure your pool or spas chemistry. Once a measurement is done, the Smart Monitor will send the information to the smart hub and then to your phone.
The power of the Sutro Smart Water System is that it allows you to see the condition of your water in real-time on your phone. This monitoring allows the Sutro system to warn you before things go astray. This capability will give you peace of mind that the Sutro Smart Water System is making sure that your water is safe to swim in.
We make sure that all our recommendations are based on the chemicals you’re comfortable with. Our Sutro partnership network ensures that you’ll have the piece of mind to know that if you run out of something or have a question, one of our local partners can help. With Sutro, you’ll know what you need, when you need it, from partners you trust.

The Science

Behind Sutro

Outer core

The outer core has a double-wall, so it fills up to keep your Sutro buoyant, like a submarine.

Rechargeable Battery

Sutro comes with two rechargeable Li-Ion batteries. So you can keep one in your device, and one charging.

The test Cartridge

The Sutro test cartridge is the real meat behind the technology. It's powered by reagents from LaMotte and does all the testing.

Waterproofing

The Sutro is built as a cylinder, and we've built a radial seal to confirm that no water gets inside while it's testing.

The Science

Behind Sutro

Rechargeable Battery

Sutro comes with two rechargeable Li-Ion batteries. So you can keep one in your device, and one charging.

test Cartridge

The Sutro test cartridge is the real meat behind the technology. It's powered by reagents from LaMotte and does all the testing.

Waterproofing

The Sutro is built as a cylinder, and we've built a radial seal to confirm that no water gets inside while it's testing.
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The sutro Monitor

The Sutro Monitor is the piece that floats in your pool (or spa). The unit is about the size of your forearm. We've built it larger to make sure that it doesn't get sucked and stuck in your skimmer. The box comes with two rechargeable batteries, one is in the monitor (so it can have power), this gets swapped out once a month.
The other battery remains to charge in the Hub & Charger unit, while the Sutro is the workhorse that tests your pool (or spa). We've also included a tether, you could tie it to something like a step-ladder, so it doesn't get in the way.
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Optimal Depth

The Sutro is about the length of your forearm. An optimal length to take a water sample from your water.

The sutro Monitor

The Sutro Monitor is the piece that floats in your pool (or spa). The unit is about the size of your forearm. We've built it larger to make sure that it doesn't get sucked and stuck in your skimmer. The box comes with two rechargeable batteries, one is in the monitor (so it can have power), this gets swapped out once a month.
The other battery remains to charge in the Hub & Charger unit, while the Sutro is the workhorse that tests your pool (or spa). We've also included a tether, you could tie it to something like a step-ladder, so it doesn't get in the way.
Sign up to be the first to buy!
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Optimal Depth

The Sutro is about the length of your forearm. An optimal length to take a water sample from your water.

The sutro Monitor

The Sutro Monitor is the piece that floats in your pool (or spa). The unit is about the size of your forearm. We've built it larger to make sure that it doesn't get sucked and stuck in your skimmer.
The box comes with two rechargeable batteries, one is in the monitor (so it can have power), this gets swapped out once a month.
The other battery remains to charge in the Hub & Charger unit, while the Sutro is the workhorse that tests your pool (or spa). We've also included a tether, you could tie it to something like a step-ladder, so it doesn't get in the way.

Optimal Depth

The Sutro is about the length of your forearm. An optimal length to take a water sample from your water.
Sign up to be the first to buy!
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

The Hub

The Hub & Charger is exactly that, a hub and charger unit - combined. The base is command central for all the data coming to and from the Sutro Unit in your pool (or spa). We've also packed this hub with a ton of technology, we use 900MHz to communicate with the Monitor in your water, so it can surpass walls, distance, your cover, and the water. A little known fact about WiFi and Bluetooth is it's actually pretty bad around walls (and more importantly water).
That's why you lose connectivity when you walk too far away from your phone wearing your bluetooth speakers. The 900MHz makes it possible for us to send small amounts of test data without needing to have a real high transmission rate. We're not sending YouTube videos to and from the Monitor, we're sending some water test data.
The hub also connects to your in-home WiFi network, so think of it's left hand holding a 900MHz connection with the Monitor in your water and it's right hand holding onto your home WiFi connection to send all the information to your app.
Its packed with technology. We make sure that your data is able to get from your water to the cloud

The Hub

The Hub & Charger is exactly that, a hub and charger unit - combined. The base is command central for all the data coming to and from the Sutro Unit in your pool (or spa). We've also packed this hub with a ton of technology, we use 900MHz to communicate with the Monitor in your water, so it can surpass walls, distance, your cover, and the water. A little known fact about WiFi and Bluetooth is it's actually pretty bad around walls (and more importantly water).
That's why you lose connectivity when you walk too far away from your phone wearing your bluetooth speakers. The 900MHz makes it possible for us to send small amounts of test data without needing to have a real high transmission rate. We're not sending YouTube videos to and from the Monitor, we're sending some water test data.
The hub also connects to your in-home WiFi network, so think of it's left hand holding a 900MHz connection with the Monitor in your water and it's right hand holding onto your home WiFi connection to send all the information to your app.

The Sutro App

Award-winning software that makes it easy to take care of your pool (or spa) water for hours of enjoyment.

Simple to Use

We spent a lot of time making sure you can see exactly what’s going on with your water

Easy to See

Our design goal was to make looking at our app pleasing to the eye and quick to find what you need to know

Hard to Beat

When you combine accurate reading and great app design, you’ll soon realize how easy it is to love your pool again

Eye Catching Colors

Our retro design was thoroughly conceived to make it easy to interact with the app

Practical Design

We focused on what’s important and tried to do as much of the heavy lifting for you as possible

What You Need

We show and tell you what’s important so that you can focus on making your water crystal clear

Smart Monitor

Our Smart Monitor is a water testing robot that floats in your pool (or spa). It uses the same process as traditional drop test kits. Our chemicals come from our partner LaMotte, the gold standard in water testing for over 100 years.
smart monitor

The Hub & Charger

The Smart Monitor transmits your pH, free chlorine, and alkalinity to our hub via a sub-GHz link. The Hub then connects to our servers, via your WiFi, so we can calculate what chemicals you should put in your pool.
The hub

Mobile App

Keep your water safe by monitoring the levels for your pool or spa water for a seamless ownership experience from our app.
Sutro mobile app
Measure your water

Measure

Simply place the Sutro Smart Monitor in your pool or spa. Once a measurement is done, the Smart Monitor will send the information to the smart hub.
Sutro will monitor the water

Monitor

Monitoring allows the Sutro system to warn you before things go astray. This capability will give you peace of mind that the Sutro Smart System is making sure that your water is safe to swim in.
Sutro will recommend

Recommend

We make sure that all our recommendations are based on the chemicals you’re comfortable with. With Sutro, you’ll know what you need, when you need it.

How it works

The Sutro Smart System is the Simple, Safe, and Seamless way to ensure that your pool or spa is ready when you are. Our patented smart water monitoring technology takes the hassle out of pool or spa water maintenance. With Sutro, you can measure, monitor, and get recommendations on treatment options without having to leave the comfort of your pool or spa. With Sutro, you get what you need, when you need it, from partners that you trust.

EXPERIENCE SUTRO

Plans starting from as low as $29/month

Complete flexibility on your payments.

Pay only when your Sutro is active.

You do not need to pay during the months the device is inactive. e.g winter. Reactivate any time!

buy now

Sutro Smart Monitor

Simply place the Sutro Smart Monitor in your pool or spa. It has all that it needs to measure your pool or spas chemistry. Once a measurement is done, the Smart Monitor will send the information to the smart hub and then to your phone.

Your Water's Condition

The power of the Sutro Smart Water System is that it allows you to see the condition of your water in real-time on your phone. This monitoring allows the Sutro system to warn you before things go astray. This capability will give you peace of mind that the Sutro Smart Water System is making sure that your water is safe to swim in.

Trusted Recommendations

We make sure that all our recommendations are based on the chemicals you’re comfortable with. Our Sutro partnership network ensures that you’ll have the piece of mind to know that if you run out of something or have a question, one of our local partners can help. With Sutro, you’ll know what you need, when you need it, from partners you trust.

What You Need.
When You Need It.
From Trusted Partners.

The Sutro Smart Water System is the only complete solution to provide you with the peace of mind that your pool or spa is ready to go when you are. At Sutro, we want you to know what’s going on with your water and get the supplies you need, when you need them, from trusted Sutro partners.

We make sure that all our recommendations are based on the chemicals you’re comfortable with. Our Sutro partnership network ensures that you’ll have the piece of mind to know that if you run out of something or have a question, one of our local partners can help. With Sutro, you're a click, a call, or a short drive away from answers.

Experience Sutro

Plans starting from as low as $29/month

Sutro

Complete flexibility on your payments.

Pay only when your Sutro is active

You do not need to pay during the months the device is inactive. e.g winter.
Reactivate any time!

buy now