






💧 Stay ahead of leaks and save water like a pro!
The Flume 2 Smart Home Water Monitor is a WiFi-enabled device that attaches easily to most residential water meters, providing real-time water usage tracking and leak detection via smartphone alerts. Designed for quick installation without plumbing, it helps users save up to 15% on water bills while promoting eco-conscious living.









| ASIN | B08DX6MP8X |
| Battery Description | Lithium |
| Best Sellers Rank | #120,320 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #91 in Water Detectors & Alarms |
| Brand | Flume |
| Built-In Media | Batteries |
| Color | white |
| Compatible Devices | Smartphone, Tablet |
| Control Method | Voice |
| Customer Reviews | 4.0 out of 5 stars 1,953 Reviews |
| Item Dimensions L x W x H | 10"L x 5"W x 5"H |
| Item Type Name | Water Sensor |
| Item Weight | 2.3 pounds |
| Manufacturer | Flume |
| Mfr Part Number | F2000 |
| Model Number | F2000 |
| Mounting Type | Tabletop Mount |
| Number of Batteries | 1 Product Specific batteries required. (included) |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 10"L x 5"W x 5"H |
| Sensor Technology | Smart Sensor |
| UPC | 810000901104 |
| Unit Count | 1 Count |
R**B
Flume gives me peace of mind and data I can use to economize
I have had my Flume 2 installed for a couple of months now, and I am impressed with the equipment and the company. Not only was the device as easy to install as they said (if an old lady can do it, you can!), but it has worked as promised from the moment it was activated. The instructions were simple and easy to follow; the need to preliminarily evaluate the compatibility of the device with your water meter was well explained and simple to do; both the written instructions and the videos were first-rate. The app is well constructed: easy to navigate, with clear and understandable graphics, helpful tasks, and suggestions. I live in a state with water restrictions, so it was an eye-opener to measure how many gallons were consumed by each cycle of my washing machine (I never found this exact data in the machine’s instructions or online). I have since revised my washing schedule, load sizes, and cycles to reduce my water consumption. This activity is easily monitored with the monthly goal you set in the Flume app. I also rest easier knowing that the app monitors for leaks real-time and sends text notifications if a leak is suspected. How many of us have gone into the garage or utility room only to find the floor awash from a leaking water heater? It happened to my friend just the other day; the heater had been leaking for some time, so there was water everywhere, soaking the floor, drywall, and adjacent storage boxes. Mold had started to grow. How often do you look at your water heater for leaks? Catching a leak early before the clean up becomes onerous is worth every penny you’ll spend on the Flume. As you can tell, I am a very happy Flume customer (no AI used in this review). Living in a time in which most of us have to be mindful of our resource consumption and utility bills, it is wonderful to have the Flume monitor on board.
R**T
Stunningly accurate
I'll have to call it 4.5 only because it has a hard time telling you exactly what is using the water and small flows like an R/O refilling register but don't record as an event you can assign even though they ask you if you have one during initial set up. That said: First, install and set up couldn't be easier! I had one small issue after a couple of days and contacted support. I gave a couple pictures and he had me adjust the mounting slightly and all was well! very pleasant and efficient support. I live in Southern Nevada where severe water restrictions and penalties have been implemented. They fine you if you use more than the cap but don't tell you how much water you are using throughout the month so the bill is always a surprise. With Flume, I know know my consumption at any given moment I just finished my first month of complete use of the device and was very pleased to find the Flume record of my water use mirrored my water bill! This is very accurate! It's nice to know my water company is not fudging the numbers. I also saw my usage and bill GO DOWN from April to May, as temps rose and irrigation increased! I can't say exactly what it was that caused this but it's like your money, the more you pay attention to what you spend, the less you will. The leak alerts take some tweaking and I am still tweaking because things like swimming pool auto fills and Reverse Osmosis take time to refill. If you have neither of them, then you will get valid leak notices in a timely manner! I know exactly how much water my irrigation uses on a cycle so I will be able to tell if I have a leak by just checking my usage occasionally. The app is good but I find the desktop portal much easier to use for all the fine tuning. I looked at the Flume for a couple of years but I was skeptical about it. It went on sale so I finally pulled the trigger and wish I had sooner.
M**R
Updated: lower stars due to greedy battery redesign
Update 6/19/23: I have had my flume 2 for two years now. Works great- but lowering stars due to flume’s changing the replacement battery to “proprietary”. My original pack that came with the unit lasted two years. The original pack is simply a holder for 4 AA lithium cells you can get anywhere. But Flume now wants you to buy a replacement pack for $14. It uses four AA cheap no-name Chinese cells spot welded in a plastic housing. Field reports indicate these cells last far less than the factory Everready cells that came in my original Flume2. So they sell you cheap, no name cells that last far less. Very disappointed Flume tried to change the battery type to proprietary, when we all know it is 4 AA lithium in the package. The approach is greedy and NOT environmentally friendly. The four “blue” spot welded AA are cheap, and don’t last as long. So, Flume added cost and materials (spot welding, molded case), all adds energy, not readily recyclable, and takes far more energy to manufacture and ship than the user replaceable original. Fortunately, I have the original reusable cage and will forevermore replace my own. Shame, Flume. Shame. Pros: Easy install, very good and responsive customer support. Cons: battery- see above. Missing a signal strength indicator on the app; I had a unit that could not connect reliably at 60 feet line of site- Customer support can see the signal strength, I could not- so no ability to self-diagnose. First, I LOVE the FLUME 2, when it worked. The first unit I received worked for 12 hrs- I enjoyed seeing the water usage patterns- but then it just stopped working- it lost connection between the Bridge and the sensor at my meter. The only way to regain connection was to remove the sensor from my meter and bring it close to the bridge. I spent days on the app chatting with Customer support, trying different things. In the end, they said: Just return it, it won't work in your application. I said "but wait, surely it should have more than 60 feet range?, maybe mine is defective". Eventually I had to "escalate" (to a manager), who authorized a no question asked shipment of a new unit. I installed it, verified it worked great- my meter is in a "vault" with a cement cover. I ended up being able to put the bridge about 100ft away, near a window but not facing the window. So the first unit WAS defective (low range). With the 2nd unit, I have now had great water monitoring experience. And, the customer support (via app chat) WAS very responsive. I dock one star for: a) no signal strength meter on the app? That was the problem- a simple set of bars would tell you if your bridge and sensor have enough strength. b) I had to convince them something must be wrong with the first unit, and ask for a supervisor/manager to intercede. c) there should be more troubleshooting/diagnostic tests and tools for self-diagnosis, without having long chat sessions with Support. FLUME customer support did the right thing, we figured out together that Flume 2 could work in my setup. High marks for the overall experience- they brought a 1 star (when they said "just send it back") to 4 star because of Customer support- they were always patient and polite...
S**H
Best I have found and almost perfect!
As someone who loves automation and smart devices I had already installed a live power monitor in my house, but was not aware of this product’s existence. Actually found it by chance while browsing and I am glad I did. There are two versions of the hardware and as of October 2020 the Flume 2 is the latest. This version has better battery life (see battery picture) and longer range. Interestingly enough after I registered for an account I got an email from Flume with a link to get a 50% off coupon from the water company, and a note about reaching out to my home insurance for a discount. I plan to do both and was very pleased. As for the device itself, it’s almost perfect but definitely a 5-star item. It’s just 2 pieces (plus a small power adapter). There is a sensor that is placed around the main water meter, and a small bridge box that connects to your home WiFi. Unlike the other systems I saw which you attach to a pipe and thus only measure water flow through that pipe, this attaches with a rubber band (provided) to the water meter and reads fluctuations in the magnetic field given off by the water flow inside, for your entire home. They even include rubber gloves and a tool to open the water pit in the street, wow! Setup was a breeze and the step-by-step process went very smoothly and quickly. Launch the App, scan a few QR codes from the devices and enter your WiFI and you’re off. Meter sensitivity seems good but I just installed it so its been operating for just a day, so we’ll see after a while. Already told me I used 85 gallons in about 30 minutes, ouch. Positives: * Super responsive and proactive support team! They reached out via chat in real-time as I got a leak alert in order to explain it and support me. I was very impressed. * Super easy and simple installation - from box opening to finishing the water sensor calibration it was about 15 min. * Works from very far away - mine is in a full metal box down the driveway about 200ft from the water meter, and still has perfect signal. I saw mentions of 1000ft+ * Long battery life - supposed to last a few years but still to be verified * Very sensitive to water usage and will provide breakdown of usage by hour (broken into minutes), day, week and month. * Has website access for the interface, as well as an iOS and possibly an Android app. * Allows editing of weekly water budgets and specifying the number of irrigation cycles per day * Irrigation detection is in beta but has already shown it's pretty accurate after use one day. Negatives/Feature Requeats: * Not really real-time - app says to pull to refresh and it’s delayed about 1min. It’s fine, but real-time would be much better, especially since it’s advertised as such and this is the 2nd generation Flume 2 hardware. * No ability yet to specify cost per gallon, fees and tiers, to compare with water bill and get early heads up on each month’s bill. - support said they are taking my feedback under advisement. * No HomeKit integration (would also bypass the WiFi selection and credential exchange, and make this setup more private) * Asks for a LOT of personal info, some it seems it could do without, but it may be for future features. * More detail/options in the iOS app, like comparing usage from different users with similar households would be nice. * Breakdown by appliance pool/irrigation/house is not implemented but suposedly coming in 2021, as per their support team. If HomeKit integration, real-time readings, and water cost as well as device usage is added, this would be 100% perfect. But do not let any of the "negatives" scare you, the positives greatly outweigh them and since it's software I am sure most will be resolved.
R**W
No Fuss Leak Alerts and Water Tracking with Flume 2
I purchased the Flume 2 a few months after buying my first home. I researched various leak detection options like Moen Flo and Phyn Plus but ultimately decided on Flume because it monitors water usage directly from the water meter. This means I can monitor leaks not only inside my home but also on the water line servicing my home and my sprinkler system, providing a more comprehensive view of my water usage and potential issues. **Installation & Setup:** No plumbing or wiring required—just strap the sensor onto your water meter, plug in the Wi-Fi bridge inside your home, and follow the app’s step-by-step instructions. The app even prompted me to take a photo of my meter for calibration, and Flume’s support team confirmed compatibility before I bought it. The installation took about 15 minutes. **Performance & Accuracy:** While I didn’t test it for 0.01 gallon per minute accuracy, I did test the Flume 2 by filling a bucket and comparing the readings, and they matched exactly. The app dashboard is intuitive, showing real-time and historical usage, and you can set up custom alerts and water budgets to help manage your consumption. **Leak Detection:** Last year, Flume alerted me to a leak. After checking inside my home and ruling out any internal leaks, I discovered that the issue was actually a small leak right at the water meter. I contacted the utility company, and they promptly fixed the leak. This year, Flume alerted me again to a leak. After ruling out leaks inside the house and at the meter, I hired a leak detection company who found the leak on a coupling on the main water line. These two leaks just show how correct in my decision on flume versus the other water leak detection systems. **Smart Home Integration:** I was able to integrate Flume 2 with both Hubitat and Home Assistant, which made it easy to incorporate water usage data and leak alerts into my broader smart home automations. This flexibility was a huge plus, allowing me to set up custom rules and notifications that fit my household’s needs. **Battery Life & Maintenance:** The battery lasted a little over a year for me, even with the sensor about 30 feet away from the home base, which I have set up on the second floor. While replacing the flume 2 battery was straightforward and only took a few minutes, it is a propriety battery pack though compared to flume 1. Flume also sells a replacement battery kit for around $20, which includes not only the batteries but also desiccant packs to help keep the sensor dry. The black battery pack does allow you to diy a battery pack if you like with regular lithium AA batteries. **Limitations:** Flume 2 won’t automatically shut off your water if a leak is detected, however, I addressed the shutoff limitation by adding a Bulldog valve robot, which does integrate with Flume and allows for automated water shutoff. While Flume does attempt to break down water usage by fixture type using machine learning—and you can help the algorithm by tagging usage events—I’ve found that this feature isn’t very accurate. One significant limitation I’ve noticed is that, while Flume will alert you if the Wi-Fi bridge goes offline, it does not notify you if the sensor itself stops reporting to the bridge. This happened to me twice: once due to a range issue and another time when the battery died. Although there is supposed to be a low battery alert, I did not receive one when the battery actually died. While flume saved me twice from leaks, I could have easily missed those leaks because the sensor went offline without being alerted. It is important to be aware of this gap and why I rated it as 4 instead of 5. **Awareness & Savings:** I haven’t noticed much in terms of day-to-day water savings, but I am definitely much more aware of my daily and weekly water habits. The detailed usage breakdowns and alerts have helped me understand exactly when and how water is being used in my home, which is valuable for long-term conservation and catching potential issues early. **Final Thoughts:** Flume 2 is a must-have for any homeowner who wants to avoid water damage, stay informed, and monitor water usage with minimal hassle. Highly recommended for its accuracy, reliability, and user-friendly design.
S**R
Amazing option
I have a slab leak. While rerouting the pipes I'm looking for a water usage monitor and remote shut-off valve. I have doubts about a battery-driven monitor without plumbing. But it ends up being my best option. First, if I can't monitor the main meter, I have to buy 3 monitors, one for the house and 2 for irrigation. I can change that but it requires a lot of work - digging. My meter is underground on the public sidewalk. It looks dark and small in there and I didn't think the Flume will fit inside. But if somebody can plumb something in there, there must be plenty of space for the Flume. The other thing is meter compatibility. I have a Neptune without clear markings so it may be the one that is not compatible. But I think as long as you don't have a too new one, it should be compatible. The installation is easy. You just need to tie the Flume on the side of the meter with a thick rubber band. I had two potential problems. When the app tries to connect with my wifi, an error shows up telling me to retry. It doesn't surprise me as my wifi 6 has the same SSID for both 2.5 and 5 GHz. I might have tapped retry and they the app jumps to calibration without confirming that my wifi is connected. I tried to confirm before putting my Flume down the rabbit hole. There's no way to go back on the app. There's no wifi indicator. I tried to add a new device but it wasn't allowed because all the devices have a serial number. So I just put the Flume next to the meter and it worked. The 2nd potential problem is that the app tells me that the Flume moved more than once. It hasn't. I could have calibrated the app with the readings on the meter. But I'm impressed enough. I think the Flume is detecting the rotation of the red dial, which is exactly what the meter does to measure water flow. If a metal or a magnet rotates, it will disrupt the electromagnetic field around it. So without calibrating, I believe the Flume will be accurate, maybe occasionally missed a turn. First, it's reassuring that my slab leak isn't deteriorating into a measurable amount on the meter. When the app says zero, the red dial doesn't move and I don't have to pay for the leak. I reseeded the lawn and I was using a lot of water since to let the grass grow. But the Flume tells me I'm using over 300 gal of water a day when the sprinklers are on. I checked and all leaks are very minor. I have the incentive to change the watering program. And recently I removed the flow limiter on my showers. The app tells me that it's about a quarter for a long shower. The usage report is on every hour. So you can know how much water you use for the washing machine, dishwasher, and maybe flushing if you plan enough. Now for the remote shut-off, instead of an expensive valve, I found a mechanical "hand" to turn off the quarter valve for about $40. I tried and it should work. But it doesn't fit my very old valve because it is very bulky - the valve body is much thicker than the pipe. Any newer valves will fit.
T**R
Easy install, great data access, a budget solver and leak detector one leak pays for the device
Very easy installation, I have a large garden with an automated drip system my Flume water monitor allows me to track my usage and keep budget happy. Outdoor water leaks can be costly the flume notice helps catch a problem early. I camp one week every month so I can monitor my water usage while away on vacation. It has been a great investment, a valuable too.
F**N
I expected more from FLUME 2.
This is a first pass at reviewing this device. I will add to it when I learn more. It was recommended (but not sold) by an irrigation professional contact . Amazon got it to me in 3 hours and I installed it 5 hours ago. Reason for buying was having an alarm to notify me of a leak in irrigation system (common and cost/waste of water is the big motivator) or an alarm in terms of leak inside of house when I am away from home (cost of water damage issue) . Secondarily to look at useage in various branches of the irrigation system as well as pool evaporation. My meter is in a well in the front yard like many properties in the greater Phoenix area. The well is ~ 50 feet from the house. FLUME gives you a handy tool to open the lid on your well. The sensor simply straps to the meter and this takes 2 minutes. "Sensor" is a bit of a misnomer because it does not really sense flow direcly. It senses the rotating magenetic field of an impeller in the water meter. In effect eh FLUME sensor is eaves dropping on the flow meter in the water meter. Looking at Patent 10750253 confirms this. Clever! So you would think that clever scheme would then report 1:1 exactly the same flow rate as the water meter. FLUME tech support remotely ran a calibration (as a favor) while I asked them for support in getting the radio link working better. You would think that it would have been really accurate after a calibration by FLUME tech. FLUME now measures 100.8 Gal while my water meter reports 103.4 Gal. a -2. 6% error. I could live with that error in the auto calibration if they woudl give you some place in the UI to manually enter the 1.02579 calibration factor so that the meter an FLUME would read 1:1. But there is no way to enter a calibratin factor manually. The sensor is batery powered and has a low power 900 MHz radio transciever to communicate witeh the WiFi bridge. Thsi is challenging becsue the sensor is in a small well and has no direct line of sight. WAHt is really frustating is that they is no singal level indicator to aid yo in moving the WiFi Bridge around to get the best signal. You can't call FLUME. The only tech support is chat which is anoying becuse it seems tht the support person is trying to deal witeh 4 other people at the same time as you. So I tried the chat and could not convince the tech to give me some numerical readings. It turned into game of warmer - colder. Tech informs me that FLUME purposely left the signal strength indicator out of the UI because it was too confusing. Not sure whey they can't give us the 5 bars we have had on cell phones for 25 years. The warmer - colder over a chat was pretty frustrating. Eventually he shared the actual reading number with me and I got a better sense of what was making a bigger difference in increasing signal. And the sensor connected well enough to let FLUME tech do a calibration. I had really hoped to optimize the location of the Bridge because I did not want a marginal RF link situation with the radio doing a lot of retries and consuming the proprietary battery more quickly as well as possibly missing data. Eventaullay a tech lead got on the chat and things went a bit better. I ended up putting the Wifi Bridge in a second floor window witeh a better view into the well. But I had not yet put the concrete lid back on the well when the 7 pm cutoff for tech support happened. Is seems to be conneced now but not sure how robust it is without a signal level indicator. Will "chat" again tomorrow with support. Also , FLUME is limited to classifying water usage by various devices in the household. I had hoped to be able to have the 9 different sprinkler zones as separate elements of my irrigatin system to dermine say if if say one zone is leaking . It will not do that. You have to sort it out from the 1 minute resolutin bar graph on your phone (that can't be exported as CSV for analysis in Excel). I will add to this review as I live with it a bit longer.
H**E
THIS IS AWESOME
WORKS GREAT. Make sure your water meter is compatible, you have wifi available nearby. The app is great. This device won't shut your water off like more expensive competitors, however it will email/text you if there is a leak or high flow event. Great for monitoring water consumption and alerting quickly if you have a leak or leave a tap on. Customer service is very responsive. Highly recommend.
P**.
Useless in Europe
Even though they ship to Europe, this product only works in Canada and USA. In Europe it is completely useless and you will have no option other than to send it back
M**Y
No es compatible en México
Te pide número de USA para crear la cuenta enviando un sms, también una dirección obligatoria de usa, ya después de eso resultó que mi medidor no es compatible y eso que tengo uno muy moderno.
R**A
Worst Customer Service - None Actually
Dont buy this. It doesnt work and if you want to contact someone, they dont have a phone number. Worst customer service.. Actually no customer service .. Just pay your money and good luck . They are too greedy to have someone pick up the phone and help. A $600 mistake .. ..
Trustpilot
4 days ago
2 weeks ago