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Internet #312008992

Model #PHNSWA01

Store SKU #1005055247

Smart Home Water Monitor, Leak Detector and Automatic Shutoff

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  • Water leak detector with an automatic water shutoff valve
  • Get leak alerts and track water use by fixture, 24/7
  • Daily diagnostic plumbing checks find drip and pinhole leaks
  • View More Details
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Product Overview

Meet PHYN Plus, the most accurate whole home leak detection and water monitor. PHYN Plus measures tiny changes in water pressure 240 times a second to alert you the moment a leak is detected, mitigate costly damage by automatically shutting off your water, and to give you detailed insights on how and where your family uses water. Daily Plumbing Checks diagnose tiny drips and pinhole leaks so you can proactively maintain your plumbing system. This single device, installed on your homes main water line, lets you manage your water throughout the entire home, even when you're away.
  • 3rd party studies have found Phyn to be the most consistently accurate whole home leak detection and water monitor across multiple flow levels.
  • From drip leaks to catastrophic pipe bursts and everything in between, Phyn Plus gives you the tools to ensure that your home is watertight.
  • Ultrasonic flow sensor and high definition pressure sensor mean no moving parts and no maintenance.
  • Phyn Plus can turn off the water to your home automatically in the event of a catastrophic leak to mitigate damage.
  • Real time mobile notifications alert you to potential leaks and give you the power to turn off your water remotely using the Phyn app – from anywhere.
  • Daily diagnostic “Plumbing Check” tests let you know of unsafe pressure levels and small drip and pinhole leaks before they become larger issues.
  • One Phyn Plus monitors the entire home's water from a single location on the main water line. No need for additional sensors.
  • View how much water you use monthly, daily and hourly to stay ahead of your bill. Track the use of your showers, toilets, washing machine and more to help save money and conserve.
  • Phyn Plus' patented pressure sensing sees ice crystals forming in your pipes before they have a chance to freeze over and burst, giving you time to take action and avoid damage.
  • Compatible with Amazon Alexa, Google Assistant and IFTTT; no hub required; requires Wi-Fi connection, standard AC outlet within 15’
  • No Subscriptions. The Phyn app and all of its features are free and available to download for iOS and Android.
  • Compatible with ¾” – 1 ¼” pipe diameter, consult a professional
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Product Depth (in.)
5.6 in
Product Height (in.)
8.43 in
Product Width (in.)
2.97 in


Alarm Type
Water Leak
Battery Size
No Additional Features
No Additional Items Included
Number of Sensors Included
Pack Size
Power Connection
Power Options
Product Weight (lb.)
5.5 lb
Range (ft.)
Remote Access
Remote Access
Requires Hub?
No Hub Required
Smart Home
Smart Home Enabled
Smart Home Protocol
Voice Control Hub Required
No Hub Required for Voice Control
Works With
Alexa, Alexa, Google, Google Assistant, IFTTT

Warranty / Certifications

Certifications and Listings
ANSI Certified,NSF Certified,UL Certified
Manufacturer Warranty
2 years limited warranty

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.2
    out of 206 reviews
  • 86% recommend this product
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Showing 1-10 of 206 reviews
Should be included with every homeowners policy
Works great! Wish I bought this sooner. Tracks accurate water use
  • Verified Purchase
  • Recommended
Great hardware. Software can be better.
So far so good. It is telling me that there's a slow leak. Now I just have to get the plumber to figure out where. I wish the iOS app would feel more useful. It doesn't always update the usage unless I kill and restart it. Seems like a big.
  • Verified Purchase
  • Recommended
Great investment for peace of mind
It is very reassuring to know the water will be turned off in the event of a leak or pipe burst, that could cause a tremendous amount of damage to my home and neighbors, this is a great investment
  • Verified Purchase
  • Recommended
Water conservation in Texas!
Best on the market hands down! I live in the San Antonio area and love the peace of mind it gives me!
  • Verified Purchase
  • Recommended
Not Satisfactory
I cannot make Phyn work reliably with my Google Nest mini. Company provided obsolete setup information, too. Also, I do not think that Phyn is very sensitive. I installed a new faucet in my house and when I opened it up, Phyn detected it as a toilet. I was assuming that it would identify this as a leak or burst pipe and shut off the water. No so. Including install costs, Phyn was very expensive. We expected better for that much money.
  • Verified Purchase
Great Product for the Right Application
Overall I'm pleased with the Phyn purchase and believe it has great product for it's desired application. I travel a lot and was looking for a monitoring/shutdown device as I've had water leaks in the past. My issue with Phyn is that it has limitations based on what water using devices are in your home, in particular a pool. Here in Arizona pools have a water leveling device which runs frequently to compensate for water loss due to evaporation. A pool water lever registers in the low flow range (0.1- 0.2) gpm which is exactly what Phyn was designed to detect. I get alerts throughout the day with Phyn shutting off my water 3-4 times a week when I don't have time to respond and tell Phyn it's not a leak. This process negates the protection purpose of the device in that it's the 'boy cries wolf' scenario since I constantly ignore the alert always assuming its the pool leveler and not a real leak. I believe my only recourse to make Phyn useful as a protection device will be to have my plumber route the pool leveler to the same water path as my irrigation system which is not monitored by Phyn. I did contact Phyn and they are aware of this issue and were helpful in explaining this phenomenon. However while Phyn is designed to detect and learn the varying flow characteristics of all water devices in your home, and it does this well, it cannot discern the low flow rate of a pool water leveler from an actual leak. Phyn is an awesome device and In would recommend 100% with a 5 star rating if you don't have a pool.
  • Verified Purchase
  • Recommended
Apps very leak
Very poor application
  • Verified Purchase
A must home improvement product for any smart home
We've only had Phyn installed for a month and it's accuracy is scary amazing. After re installing our main water line, I felt it was fitting to install Phyn to ensure we are leak free for years to come. As I stated earlier the data this device records is amazing. So far it has brought to our attention how efficient your dishwasher and washing machine really are. I have stopped handwashing dishes now because of how much water is wasted. Phynn is definitely a worthy device to have in any home.
  • Verified Purchase
  • Recommended
Great choice, no regrets!
Professional installation went smoothly, app works very well. The best benefit is seeing and compensating for water usage in real-time. I was very shocked to see how much water we were wasting- I mean using, and have already made changes to reduce unnecessary water usage.
  • Verified Purchase
  • Recommended
Does exactly what it claims!
The Phyn Plus Smart Water Assistant does exactly what it claims it will do. Once set up it is very intuitive and has given us the peace of mind we were hoping for. There have been a few occasions that the system has notified us of an unusual event and provided us with the opportunity to respond to it. Overall, we are extremely happy with the system and the Phyn App, which is easy to use and provides helpful information. All in all, we love the Phyn Plus system!
  • Verified Purchase
  • Recommended
Showing 1-10 of 206 reviews