Search  for anything...
Moen

Moen Flo Smart Water Monitor and Automatic Shutoff Sensor, Wi-Fi Water Leak Detector for 3/4-Inch Diameter Pipe, 900-001

  • Based on 2,002 reviews
Condition: New
Checking for the best price...
$499.22 Why this price?
New Year Deal was $499.47

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 12 left in stock
Fulfilled by Amazon
Arrives Wednesday, Feb 4
Order within 11 hours and 35 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: Smart Water Shutoff Valve


Size: 3/4 inch


Features

  • AUTOMATIC SHUTOFF: Learns your homes water usage patterns to identify abnormalities like running water or small leaks and will automatically turn off water to prevent damage
  • REAL-TIME NOTIFICATIONS: The device monitors your homes water, sending you app, phone call and email alerts for potential leaks whether you're at home or away
  • APP-BASED CONTROL: Proactively control your water from anywhere using the Moen Smart Water Network App for added protection
  • OPTIMIZE: FloSense technology enhances the devices security parameters and optimizes water savings by understanding the homes water use and tailoring protection accordingly
  • INSTALLATION INFORMATION: Everything needed for installation is included in box, and professional installation is recommended
  • COMPATIBLE WITH: Moen Smart Water Shutoff devices are compatible with Alarm.com, Ring, Google Assistant, and NICE
  • SIZE: Model 900-001 fits 3/4-Inch to 1-1/4 Inch pipe diameter (consult a professional)

Description

Bring smart plumbing to your home with the Flo Smart Water Monitor and Shutoff. The Smart Water Monitor and Shutoff is a smart home water security system that provides 24/7 protection by monitoring for water leaks—some as small as one drop of water per minute—and other vulnerabilities. Designed by plumbing and tech industry professionals, Flo Smart Water Monitor and Shutoff is installed on the main water supply line of the home. You can see live water use through the Moen Smart Water Network App, including water flow rates, pressure, and even temperature. If the Smart Water Shutoff detects an issue (e.g. high pressure, freezing water, or a small leak), a water sensor alarm will alert you through the app to assess the issue before it causes costly damage. If there is a catastrophic failure, like a burst pipe, you will be alerted in the app allowing you to shut the water off remotely—no matter where you are. If you fail to respond to the alert or are on vacation, the device can be set to automatically shut off water to help limit damage and loss. The smart water app notifies you of abnormalities to remotely turn off the water from the Moen Smart Water Network App, or the device can be set to automatically close the valve to help prevent catastrophic damage. In addition to leaks, the device will notify you if it senses a fixture has been left on or if temperatures have dipped too low and pipes are at risk of freezing. The app is free, with no fees or subscriptions required. Should the Wi-Fi connection be lost, the device will still protect the home as it stores the latest learnings locally, allowing it to continue safeguarding the home until a Wi-Fi connection has been restored. Everything needed for installation is included in the box. Professional installation is recommended and takes just a few hours when the home meets installation requirements. The colors of the physical product may vary.

Color: Blue


Brand: Moen


Power Source: AC


Compatible Devices: Smartphone, Tablet


Product Dimensions: 10.98"L x 10.55"W x 5.59"H


Battery Description: ‎CR123A 3-volt lithium metal battery


Voltage: ‎12 Volts


Control Method: ‎Voice


Mounting Type: ‎Wall Mount


Sensor Technology: ‎Ultrasonic Sensor


UPC: ‎860000103503


Item Weight: ‎4.8 Pounds


Global Trade Identification Number: ‎03


Size: ‎3/4 inch


Manufacturer: ‎Moen Incorporated


Part Number: ‎900-001


Item Weight: ‎4.75 pounds


Product Dimensions: ‎5.75 x 2.6 x 5.9 inches


Item model number: ‎900-001


Style: ‎Smart Water Shutoff Valve


Finish: ‎Unfinished


Material: ‎Plastic


Pattern: ‎‎Water Shutoff


Installation Method: ‎Supply Line


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Usage: ‎Indoor/Outdoor


Included Components: ‎Allen wrench/Hex Key, Leak Detection System, O-rings, Power Adapter, Spacers, Threaded tailpieces


Batteries Included?: ‎No


Batteries Required?: ‎No


Description Pile: ‎CR123A 3-volt lithium metal battery


Warranty Description: ‎1-Year Warranty


Date First Available: March 20, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Piece of mind; worth the price and monthly fee
Style: Smart Water Shutoff Valve Size: 3/4 inch
Review Image by R. Precourt R. Precourt
Review Image by R. Precourt R. Precourt
I've heard about these for a while and thought it would be a nice thing to have, but never actually bought one, until now. After our neighbor's house flooded for the second time I thought it might be a good idea to have this, since all of these houses were built by the same builder. If they're having that many problems it could be a matter of time before we do as well, as both times their house was severely damaged. I'm not a plumber but have basic skills and had no problems installing the Flo valve. I used a 2" nipple between the Flo and our water filter and a shark bite on the other side to connect into our PEX pipe that comes off the PRV. It took less than an hour to install. Setup was simple and instructions were easy to follow. It took an hour or so for it to realize that it was installed, and then took another week or so to 'learn' our usage habits. Right after installation I began getting real-time data on flow rate, pressure, temperature, and gallons used. The data is pretty cool, but historical data is extremely limited. In the app, you can only get hourly data for the current day and weekly data for the current week. On the website you can only view/download hourly data for the current and prior day, daily for current or past four weeks, and monthly for the past 12 months. We've had the Flo installed for just over two weeks now and had no problems with it. We subscribed to Flo Protect but thus far it still has not identified individual fixtures. A note on that; they say 'we need a couple weeks of data before we can identify fixtures.' I contacted support and they told me it's actually three weeks. I suggested to them that they change their messaging on that to manage expectations. I've seen quite a few people unhappy that they have to pay $5/mo for the Flo Protect plan after paying $400+ for the valve. I have no problem with paying for it. We pay $15/mo for our alarm monitoring after paying around 2k for our system to protect our home. Water can cause severe damage, so I'm good with paying $5/mo to monitor that since it's probably more likely to happen than a break in when you think about all the places plumbing could fail and the extent of damage it can cause. Sure, insurance will probably pay for most of the repairs, but as I sit here listening to them jack hammering up the hardwood floors a couple doors from me for the entire day and watch all the various work trucks coming and going, I think of the inconvenience of it all. Overall I give the system a 4 star rating because availability of historical data is quite limited and I'd like the ability to download detailed hourly or daily data for a large period of time into Excel to perform more detailed analysis. If the data was more available I'd give it a full 5 stars. Support through the water concierge chat is excellent but anything I've sent via e-mail has gone completely unanswered, so I recommend using the chat. Today I purposely left our kitchen faucet on at a trickle while I was eating lunch and they called my phone after around 30 minutes to alert me to long water duration. I also got an e-mail about it and an app notification, all of which gave me the option to turn off my water immediately or ignore it. They said if I did not respond they would shut it off in five minutes. I'm pretty sure if a pipe broke and a lot of water was flowing it would have alerted much faster, but I only left the faucet barely trickling. All things considered I think this is a great product and both it and the monitoring are worth it in my opinion. Update 3/8/2020 Usage by fixture finally became available after a little over three weeks of use and I wanted to provide some information on this. My expectations were pretty low for this feature and thus far I would say they may have just barely met them. My thoughts on this are that it would be quite difficult to isolate usage to a particular fixture, since the only data points they could use to identify fixtures would be flow rate and duration and many things could have similar flow rates, not to mention overlapping usage (i.e. you flush the toilet, then go and wash your hands, washing machine could be running while you're taking a shower, multiple people using water, etc.) That being said, it has done a fairly good job in identifying faucets, toilets, and showers/baths, but not always correctly. It has not been able to isolate anything else, such as the washing machine, dishwasher, refrigerator, etc. You do have the ability to go in and reclassify an event but I'm not certain that it learns anything from that or not. I know I changed one it got wrong from faucet to shower/bath and later I looked and it had changed it back. When you look at the event details it only provides the time, duration, and gallons used. It would be extremely helpful if it also provided the flow rate, as that is one of the most useful data points in identifying what fixture may have been using water. I plan to make that suggestion and hope they'll consider implementing it. If I can accurately reclassify events and it actually learns from that then maybe it would get more accurate over time. My overall rating and opinion of the device is unchanged and I still feel it is very useful and provides an extra layer of protection for our home. Update 4/7/2020 Upgrading my overall rating from 4 to 5 stars because they just added expanded access to historical data which was the one thing that I felt was lacking. You can now view data by day, week, month, year, and even by custom date range. Being able to view a custom range is helpful if you want to compare the Flo data to your water bill as you can set it to the same billing period. ... show more
Reviewed in the United States on March 2, 2020 by R. Precourt R. Precourt
    • Limited Smart Device & App Impinging Home Enjoyment-fails when needed
Style: Smart Water Shutoff Valve Size: 1.25 Inch
We were forced into buying a water leak detector by our Insurance Company Farmer's, otherwise would be at risk of being declined home insurance. We were advised to get this specific product, they apparently have agreements with Moen for purchase and then installation at supposedly lower rates. Had to show proof of installation. Since this has been in, we've had only false alarms accompanied by water shut offs, along with two actual small leaks in which it failed to detect anything. The device is completely useless and is an impingement on enjoyment of the home. Anytime you use water out of a regular pattern, it notifies you of abnormality and then shuts off the water. I've had the water shut off now three times while I'm in the shower with it noting abnormal activity for the time of day. Imagine that. You go to take a shower, but because it's not your usual time for that activity, it detects abnormality and shuts off your water right in the middle of your shower. How are you notified? Through text, email, and phone call. Who brings their phone into the shower with them? There's no way to adjust for this except to go back to the beginning and do what they call a restart which for 10 days you have to teach your device all the patterns. Moen themselves suggested that during those 10 days you just leave the water running uninhibited so that your device learns a high water usage and won't go off. I did it in the beginning. Who can do that now? It's winter time and raining. And I'm going to let my water flow freely so it can supposedly learn that water should be used during these hours? It's an unpleasant and quite frankly useless addition to the home. I regret having purchased this quality of device, and should have just bought the cheapest device out there and had it installed to satisfy insurance needs. Extensive reading of reviews also discussed this device giving out in 2 to 5 years, and I discussed this with Moen and they admit that it could be a 2-year device only. This is a racket. I paid close to $2,000 together with the device and installation. The app is difficult and doesn't allow you to easily turn back on your water. Just last night when I had noticed the phone call at 11:30pm, after having gotten out of the shower, I tried to cancel the shut off, it's in an in between mode where you can't do anything with the app. The dial is spinning. There's no one to call and nothing to do about your app trying to figure out what it's supposed to be doing. Your other option is to go outside and do a manual turn on. Twice, when we had a small drip leak from a refrigerator line and then under the sink after a Workman had damaged these, 5 days of slow drip, the app was detecting it but decided not to notify me because the settings weren't on sensitive. That was the explanation from Moen. They advised me to turn all my sensitivities up to the highest level. I did that and then I started receiving notifications and warnings of impending shut off for every little thing. Then Moen just told me to lower the sensitivities back down. So again, if I have a slow drip, it's not going to notify me. I talked to them about using water during a non-usual times, like taking a shower, and their answer is simply there's nothing to do about it except do a restart. Our home was repiped with copper just about 22 years ago, 2 years past the deadline for which the insurance company says they will waive requiring the device. Just a bunch of hassles and one more thing to do in your home and be stressed out over. Difficult app, difficult device, doesn't do much smart thinking except what's programmed into it on a very basic level. Difficult customer service with Moen. Not recommended. ... show more
Reviewed in the United States on December 24, 2025 by BeaG

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...