Description
Make water care simple, straightforward, and accurate with the Sutro Pool & Spa Monitor.
The Sutro Monitor provides accurate and automatic daily water tests and sends results and recommendations right to your smartphone.
Rather than using test strips to guesstimate which chemicals you should add to your spa, the Sutro Monitor tells you exactly when and how much of each chemical you should be adding. Not only does Sutro take the work out of water care, but you’ll also use less chemicals.
The Sutro Monitor measures:
- pH
- Free chlorine or bromine
- Alkalinity
A Sutro Cartridge Subscription is required when purchasing the Sutro Smart Monitor. This includes access to the Sutro App and your monthly replacement cartridges.
Automatic Water Testing
The Sutro Monitor tests your water 3 times a day with the highest accuracy, and gives exact instructions on balancing your water.
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Spend Less Time on Chemistry
The Sutro Monitor automatically tests your chlorine, pH and total alkalinity. When your water is out of balance, you're notified on your phone with steps on how to fix.
Accuracy Means Safer Water
The Sutro Monitor uses a chemical form of water testing used by spa professionals and pool shops called reagents.
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The Highest Quality
The Sutro Cartridge uses complex technology and reagents by LaMotte - the Gold Standard in water testing for 100+ years - for the most accurate readings available.
How It Works
The Sutro Monitor has several components, and requires a monthly subscription (Basic - $49 or Premium - $59), which covers replacement cartridges and access to the app.
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Monitor
The Smart Monitor is a device that floats in your spa and performs the tests. It contains a rechargeable battery.
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Hub
The hub sits inside your house; it receives the tests via WiFi and sends them to Sutro's servers, which calculates recommendations and sends to the App.
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App
View your water test results, recommendations, and historical data (premium plan only) from your Smartphone anywhere, anytime.
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Subscription
Your subscription covers replacement cartridges as needed, and app access and features.
The Sutro Monitor tests your water three times per day using cartridges of the highest quality reagents, for the most consistent and accurate readings available on the market.
The Sutro Smartphone app provides daily reporting for your pH, free chlorine (or bromine), and total alkalinity, and tells you exactly what and how much of each chemical to add when your water is out of balance. You can even scan your favourite Jacuzzi water care products into the app.
What's Included
- (1) Sutro Monitor (the device that floats in your spa)
- (1) Water test cartridge (lasts for about a month)
- (2) Rechargeable Li-Ion batteries (charge lasts about a month)
- (1) Hub/Charger base (goes in your house to extend the Sutro’s range)
- (1) US-110V adapter
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Spend More Time Enjoying Your Spa
Automate your water chemistry and forget worrying with the Sutro Monitor; the highest accuracy on the market for the best water.
For a limited time, Save 15%
$749.00 $636.65 - Save $109
Help & Guides
Frequently Asked Questions
What does Sutro take readings for?
The Sutro takes readings for chlorine or bromine, pH, and total alkalinity.
How far can the Sutro Monitor be from the Hub?
The best distance between the monitor and hub is 30-40ft from your spa, but closer is better.
The distance can sometimes be up to 50ft, but this depends on walls/interference between and runs the risk of missing readings or device disconnections.
Can I force Sutro to take a reading?
Currently, you cannot request individual readings. However, if you have the Premium Subscription, you can customize your daily test times.
In the app, open settings and select "Timing" to adjust test times.
Can I change when my Sutro takes readings?
If you have the Premium Subscription, you can change your Sutro test times.
In the app, open settings and select "Timing" to make changes.
What's inside the test cartridge?
The Sutro Cartridge measures chlorine or bromine, pH, and total alkalinity using 5 reagents: 2 are used for chlorine/bromine, 2 for alkalinity, and 1 for pH.
The cartridge has 3 reaction chambers that use magnetic mixing balls to mix the reagents with the water.
The reagents are similar to the ones in liquid drop test kits. The chlorine/bromine is measured using the DPD method, the pH with phenol red, and alkalinity using titration with a mixed pH indicator.
Can I buy individual cartridges?
Currently, you cannot buy individual Sutro Cartridges.
What chemicals will work with Sutro?
Sutro works with all chemicals in their database, which includes our Jacuzzi chemical line.
A complete list of chemicals can be found on Sutro's website.
What's included in the subscription?
There are 2 subscription plans available:
Basic
- Replacement cartridges shipped when you need them.
- Access to the Sutro app and their support team
Premium
- Everything in Basic.
- Priority support with a certified CPO (Certified Pool/Spa Operator).
- Weekly water health report
- Monthly Pool consultation (on request).
- Advanced analytics.
Is there a seasonal subscription?
There isn't a seasonal subscription, but can pause and resume your subscription at any time.
How can I pause my Sutro subscription?
- Log in to your account at hottubstore.ca.
- Click the account icon at the top right of the page.
Desktop: Click Manage Subscriptions.
Mobile: Click Account and scroll down to find Manage Subscriptions. - Click on your subscription.
- At the bottom right of your subscription, click the Pause my subscription button.
What languages does the Sutro app support?
Currently, the Sutro app only supports English and French.
Can Sutro connect to my smart device?
Sutro is currently compatible with Google Assistant, for Google Home.
Note: your Sutro email needs to be the same as your Google account.
To Set up:
- Open Google Assistant.
- Type or Say "Talk to Sutro Smart Home."
- Login using Google, and it's connected.
To use, say "Okay Google, talk to my Sutro Smart Home."
Then you can ask:
- What are my latest readings?
- What's my pool temperature?
- What are my latest recommendations?
Sutro is not yet available on Alexa or Apple Home.
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Setup Guide & Help
Follow our guide on how to set up your Sutro, including troubleshooting any issues along the way.