Moen Flo Smart Water Leak Detector, Drip or Flood Sensor Alarm for Home, 1-Pack, White, 920-004
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Availability:
In Stock.
Arrives
Sunday, Mar 22
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Color: White
Size: 1 Sensor
Features
- PROTECT YOUR HOME FROM WATER DAMAGE: Place in home wherever there is a risk for potential water damage, such as a flooding basement, washing machine leak, hot water tank failure
- 24/7 PROTECTION: Smart technology detects leaks to help reduce the risk of water damage by providing 24/7 monitoring
- REAL-TIME NOTIFICATIONS: Connects to the Moen Smart Water Network App to notify you of moisture through notifications to their smartphone; the app can also be customized to monitor moisture levels, humidity, and temperature
- WHOLE-HOME PROTECTION: Ability to use and connect multiple detectors for whole-home protection; available in single or multi-packs, achieving home water management on any budget
- COMPATIBILITY: Use the Smart Leak Detector as a standalone monitoring device or connect it to the Flo Smart Water Monitor and Shutoff (sold separately) for whole-home protection
- REMOTE SENSING DISC: Included extension cable with Remote Sensing Disc that extends up to 48 inches, making it perfect for reaching tight spaces like under a washing machine or next to a dishwasher
Description
Protect your home from water damage with the Moen Smart Leak Detector. This Smart Leak Detector can be placed anywhere in your home where water leaks and moisture could pose a hazard. The water leak detector can identify problems caused by environmental factors or fixture malfunctions, in places such as the basement or laundry room, to provide 24/7 protection. When water, excess humidity, or extreme temperatures are detected, the water leak sensor sends an alert via the Moen Smart Water Network App, sounds an audible alarm, or emits a blinking LED light. Combine the Smart Leak Detector with the Flo Smart Water Monitor and Shutoff for whole-home protection.
Color: White
Brand: Moen
Power Source: Battery Powered
Compatible Devices: Washing Machine
Product Dimensions: 2.64"L x 1.5"W x 3.25"H
Battery Description: Lithium
Number of Batteries: 1 CR123A batteries required. (included)
Control Method: App
Noise Level: 51 Decibels
Mounting Type: Tabletop Mount
Maximum Range: 48 Inches
Sensor Technology: Electronic Sensor
UPC: 860000103596
Item Weight: 0.28 Pounds
Smart Home Compatibility: Smart Home Compatible
Size: 1 Sensor
Manufacturer: Moen Incorporated
Part Number: 920-004
Item Weight: 4.5 ounces
Product Dimensions: 1.46 x 2.64 x 3.28 inches
Item model number: 920-004
Batteries: 1 CR123A batteries required. (included)
Style: FLO by Moen
Finish: White
Pattern: Leak Detector
Item Package Quantity: 1
Included Components: battery, remote sensing disc with 48" extension cable, self-adhesive wall mount sticker, smart water detector, wall mount base, wall mount screw
Batteries Included?: Yes
Batteries Required?: Yes
Battery Cell Type: Lithium Metal
Description Pile: Lithium
Warranty Description: 1 Year Warranty
Date First Available: February 1, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Mar 22
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: White
Size: 1 Sensor
This alarm works perfectly at detecting water. A few caveats: As people mentioned, the pairing and Wi-Fi setup steps are missing from provided setup instructions, however, within minutes I located a short YouTube video that quickly filled in the blanks, and once you do this, it takes a few minutes to connect. Second caveat is that the provided alarm is very quiet. Your smartphone has louder ring options. So, you really need to rely upon the iPhone notification alerts to have a clue that it is going off, unless you are sleeping right next to your sump pump or wherever. I rigged mine to hang into a basement drain with the sensor on cord. Works. My sump failed, and I would never have known since I don’t go into basement daily and check, and dehumidifier regularly drains to this pump. I got a notification on iPhone from the Flo app while away from home, and checked sump upon return to determine sump had failed, but water was still in drain, so no overflow. I caught it early enough to minimize cleanup. It’s just a little, relatively cheap device, but it works.
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Reviewed in the United States on December 21, 2022 by J. S.
Color: White
Size: 1 Sensor
My first unit, installed in an upstairs bathroom, works great. So I bought a 2nd. The 2nd unit started beeping as soon as the sensor touched the flooring on my first floor, which is installed on a slab. The temperature at floor level is colder than a few feet up, which is common in older homes built on concrete slabs in the north. Moved it to the water heater, which is directly on the concrete; no flooring. The remote sensing disk didn't like that at all & kept telling me there was a leak, when obviously, there wasn't a leak. Unplugged the sensor & put the unit directly on the floor. So far, it hasn't beeped, but the unit is raised up off the floor & water would have to be much deeper in order to sense a leak. My insurance company gives a discount if using water detectors but not from this brand, which I found out later, possibly because of the bugginess in winter. There is no tech support, which Amazon asked me to rate. Instead, the app pushes you to sign up for service plan $$. No thanks.
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Reviewed in the United States on November 29, 2023 by Tazo
Color: White
Size: 1 Sensor
Every home should have these. You put them wherever you could have a water leak. We have ours by our sump pump. I had a friend whose water hose that went to their washer leaked and flooded their home. One of these would have alerted them via the software application downloaded to your phone. They are good near toilets, sinks, basement doors, whatever you think you could have water. They give you peace of mind. These are excellent for leak detection. Moen is a leader in the industry and they standby all their products. You get what you pay for and these are worth every penny. The setup with the app was not the best trying to link the product, but I figured it out through sheer determination. This needs some attention from Moen.
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Reviewed in the United States on October 31, 2025 by csj
Color: White
Size: 1 Sensor
As other reviews state, the single unit I ordered arrived with the battery ajar and insulating strip off to the side so the battery had been draining since it was installed by the manufacturer. After setup, the Flo app indicated about 60% battery life remained. Will be good if Moen sends a new battery...time will tell. App installed on iPhone 13mini running iOS 16+. Many questions to answer to register but par for course these days. First try to connect to our home WiFi seemed to work (I had no prompt I entered my password incorrectly) but after finding the system not connected, I figured out the problem on second try. The app seems well designed. I set the acceptable operating range of humidity, and temperature I wanted and checked the boxes for email, text, and push alerts. After testing the hardware, I have yet to figure out how to delete the activity log, but the log can be filtered, collapsed and hidden. The alarm events can be deleted (just not the log). The primary sensor responded quickly to water. The main unit responds with beeping alarm for about 10 seconds and then stops and would not respond again if it remains sitting in water. If it dries, and is wetted again, a new alarm event occurs without manually resetting anything. The alarm beeping sound measured roughly 62dB at a distance of 5ft (1.5m). A nearby gas, forced-air furnace totally masked the sound of the alarming detector. Given the alarm shuts off after apprx 10 sec., one would need to be nearby, in the room to have a chance of seeing the LED or hear the alarm. (I believe most smoke alarms register around 95+dB for comparison). Don't count on hearing this alarm over other household noise. Disappointingly, the primary alarm sensor toggles to the remote sensor when the remote sensor is plugged in. I was hoping to place the primary sensor on a floor drain covering and the remote sensor under the washing machine so if the drain from other sources backs up or the washing machine leaks, I would get an alert. You have a choice of one sensor or the other, but not both. The remote sensor responded quickly to water. To bluntly test for low temperature, I set the low end of the desired operating range to 40F (4.5C) and placed the unit outside where the winter temperature was 28F (-2C). The unit sensed the 40F (4.5C) lower limit in roughly 15 minutes and triggered the text and emails as expected. This 15 min delay was comparable to another remote sensor for a smart thermostat I also placed outside (indoor room temp. was approx 70F (21C). I did not examine how loud or if the alarm sound changes between the different sources of alarm (cold or moisture) but I did not hear the alarm inside when and if it was audible outside. I have no experience with other similar sensors on the market today so a comparison isn't possible. I hopt these details can provide someone else useful information from which to make their own comparisons. I think for the price, and having experienced two human caused basement floods and one nature based flood during a deluge of rain, I'm satisfied with this purchase so far. Suggestions would be to allow for a volume adjustment of some sort (like toggle 62dB or 110dB) so the user doesn't have to rely only on text and email alerts, don't shut off one sensor when the other is active (better value for the $), add feature such as multiple emails to the app so that some users could receive alerts but not have access to the settings (i.e. for renters vs administrator, etc.) Hopefully my mostly positive impressions last as time goes on....speaking of which....how long does the battery last when it has 60% of life remaining....time will tell when the unit sends the 20% remaining battery warning I also triggered to 'on'.
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Reviewed in the United States on March 26, 2023 by CurtROlson
Color: White
Size: 1 Sensor
I'm still messing with my phone settings trying to get the notifications to work. I've tried everything and googled a lot and still no joy. I'm in Alaska and my water heater is in a utility closet with the furnace on my balcony. (not sure why haha but that's where it is) There's a small hard wired heater in there but when temps go below 0 it's not fun to have to check that closet or just hope that heater is still working to keep that closet warm. Without notifications I've at least been able to check the temperature out there without going out there. I know when to turn the temp up on that heater now at least. It would be 5 stars if I could get the notifications to work. I had a small issue setting up the wifi. It was my fault I mistyped the password and I had to Google how to do the factory reset because it hung onto the incorrect password like a bad habit lol But once I found the reset info the correction was quick and all is well. Now if only the notifications would work....
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Reviewed in the United States on December 20, 2025 by Dianne