Product Library / Water Protection & Plumbing
Research profile · last verified 2026-07-19Moen Flo Smart Water Shutoff
Compatibility
| Ecosystem | Support | The catch |
|---|---|---|
| Home Assistant | PartialPartial support — see the catch | READ THIS BEFORE BUYING FOR HOME ASSISTANT: the integration is officially listed, which makes it look like a solved problem, but it is currently broken for new and migrated accounts. Home Assistant's core 'flo' integration authenticates against the legacy api.meetflo.com endpoint, and since Moen's app migration that authentication fails — HA core issue 171600, opened 2026-05-20 and still open at time of research. Because migration is now mandatory, this affects essentially anyone setting up today. A community HACS component exists as a workaround but is described as targeting Moen faucets, and whether it supports the shutoff is unverified. Rated partial rather than full for exactly this reason, and rather than none because the integration does exist and may still serve unmigrated accounts. |
| Google Home | WorksWorks with this ecosystem | Valve control and modes, set up by searching 'Moen Smart Water' in Google Home. The caveat is the migration: Moen's own documentation describes Google support as working 'through the Moen Flo app' — the app being retired — and the post-migration status was not verified from either side. |
| Amazon Alexa | Not checkedWe have not verified this yet — this is not a claim about the product | Genuinely contested, and Moen contradicts itself. The 900-001 spec sheet and current shop pages both say 'Works with Amazon Alexa', but Moen's own 'Enable Moen Alexa Skill' support article lists only the Smart Faucet, Smart Sprinkler Controller and Smart Sump Pump Monitor — the Flo Shutoff is absent. The likely explanation is a legacy Flo Technologies skill separate from the Moen skill, whose fate under the app migration is unverified. Recorded as unknown rather than resolved in either direction. |
| Apple Home | Doesn't workVerified: does not work with this ecosystem | No native Apple Home support. The evidence is stronger than mere absence: Moen documents a HomeKit path for its Smart Showers while documenting none for the Flo line, so the omission is a deliberate product distinction rather than a gap in the documentation. A community Homebridge plugin (homebridge-flobymoen, v1.0.21, 2026-04-21) provides the only route, and it rides the same unofficial cloud API that the app migration has already broken for Home Assistant — treat it as at risk. |
| SmartThings | Not checkedWe have not verified this yet — this is not a claim about the product | No path was found in either direction. SmartThings does not appear on Moen's integration list, and no official or community Edge driver was located. That is absence of evidence rather than a vendor statement of non-support, so this stays unknown rather than none. |
? Not checked means we haven’t verified that ecosystem yet — it is a statement about our research, never a verdict on the product. A Setup Check can research it for you.
Protocols: WIFI
Subscription reality
◐ Works without a subscription: Yes, but material features need a plan.
- Free: Automatic shutoff (FloSense) — the core protective behaviour, Leak alerting via app, phone and email, Daily automatic MicroLeak / Health Test, Water usage, flow, pressure and temperature data, Remote valve open and close, and Home/Away/Sleep modes
- Behind a plan: Extended limited warranty to 5 years from installation, Performance Guarantee — up to $5,000 reimbursement of a homeowner's insurance deductible (from $5/mo)
- 5-year cost if you add the plan: ~$300 at $5/mo — price verified 2026-07-19
The value here runs BACKWARDS from what most buyers assume, and a lot of published blog copy gets it wrong: you are not paying for protection, you are paying for reimbursement if the protection fails. Moen states plainly that 'There is no monthly fee to operate your Moen Flo Shutoff and you can access all the features and your water usage data in the app for free' — automatic shutoff is free. FloProtect at $5/month buys a warranty extension and a deductible guarantee, both financial rather than functional. The fine print bites in three places: Moen's own terms state 'FloProtect is a Product warranty provided by the Company and is not insurance'; the $5,000 guarantee only pays if the device failed to notify or shut off AND was properly installed, connected to Wi-Fi, active at the time, and current on payments, with acts of nature and the initial learning period excluded; and cancelling permanently forfeits the extended warranty, which re-subscribing does not restore. Claims that FloProtect also includes live support and enhanced usage data appear in secondary sources but not in Moen's terms, and are not recorded here.
Maintenance reality
- Cloud dependence: Yes — a server shutdown would degrade or brick this device
- Mains AC required continuously, from an outlet within 6 ft per the spec sheet (marketing says 10 ft; 25 ft extensions are sold). There is no built-in battery — backup is a separate purchase, and it carries recall history worth knowing: CPSC and Moen recalled ALL Flo Lithium-Ion Battery Back-Ups (model 920-001) on 2023-04-13 for a fire hazard, roughly 10,000 units sold between 2019-08-30 and 2022-11-18, after three overheating or fire reports with no injuries, and the remedy was refund only — Moen did not replace them. A different SKU (920-008, up to four hours) is sold today, but no primary source designates it as the recall replacement, so that link is not asserted. Power loss is distinct from internet loss: with no power the valve HOLDS its last position rather than failing closed, so there is no protection at all. A physical backup shutoff lever on the device body always works. The Health/MicroLeak test closes the valve and watches pressure decay for 30 seconds to 4 minutes, once daily by default and up to three times, detecting down to one drop per minute — and Moen states that disabling it may void both the product warranty and the FloProtect deductible. No filters or consumables, though well and irrigation installations need a 100-mesh wye strainer with periodic cleaning.
The catch
Four surprises, in order of how badly they land. The integration layer is mid-collapse: Moen retired the app the enthusiast ecosystem was built on, Home Assistant's official integration is broken for anyone who signed up or migrated recently with the bug still open, and the Homebridge route to Apple Home rides the same unofficial API — so if you are buying this to automate locally, the answer today is probably no. It is a cloud product with real local fallback, but Moen will not quite say how much: the company confirms monitoring continues and data is stored locally during a Wi-Fi outage, yet its own Wi-Fi FAQ is conspicuously silent on whether AUTOMATIC SHUTOFF still fires offline, and secondary sources contradict each other. Power loss is worse than internet loss, because the valve holds its last position rather than closing. The subscription's value is inverted from the assumption — you pay for reimbursement if protection fails, not for the protection, and cancelling forfeits the extended warranty permanently. And it cuts into your main line, so it is neither a renter product nor a reversible purchase.
Who it's for
Homeowners with an accessible main and a nearby outlet whose real fear is a burst supply line or a slow hidden drip rather than one specific appliance, and who want protection that works out of the box with no subscription and no sensor-placement guesswork. It suits anyone whose insurer offers a leak-mitigation discount, though Moen itself only offers a verification letter and points you at your insurer rather than promising anything. It is a poor fit for renters, for homes whose main is inaccessible or outdoors in freezing conditions, for homes with fire sprinklers on the same branch, for Apple Home households, and — right now especially — for Home Assistant and local-control users. Treat it as a complement rather than a substitute for point sensors: it detects supply-line anomalies, not a puddle under the dishwasher.
Sources & method
Moen spec sheet PDF for 900-001 (Rev 9/22, assets.moen.com) — 0.75 in NPT, 175 psi max, 802.11 b/g/n 2.4 GHz only, outlet within 6 ft, 1-year warranty, prohibition on piping branching to residential fire sprinklers, 100-mesh wye strainer for well installs, physical backup shutoff shown in the drawing. SIZE CONFLICT RECORDED: the same spec sheet says the device must be installed on a 0.75 inch line then parenthetically '(can be installed on 1.25 inch diameter or smaller)'; separately shop.moen.com describes the 900-002 as '1-1/2 inch or smaller' while Moen Professional, Home Depot and the product line name all say 1.25 inch. Size by SKU rather than by page. — vendor-spec-sheet research, verified 2026-07-19 · shop.moen.com/pages/flo-smart-water-monitor-support states verbatim 'There is no monthly fee to operate your Moen Flo Shutoff and you can access all the features and your water usage data in the app for free.' solutions.moen.com FloProtect enable/cancel article states $5/month, month-to-month. The FloProtect terms and conditions give the two benefits (5-year extended warranty, up to $5,000 deductible reimbursement) and state 'FloProtect is a Product warranty provided by the Company and is not insurance', with conditions requiring proper installation, an active Wi-Fi connection, current payments, and excluding acts of nature and the learning period, plus permanent forfeiture of the extended warranty on cancellation. — vendor-page and vendor-terms research, verified 2026-07-19 · home-assistant.io/integrations/flo/ documents the integration as Cloud Polling with a binary sensor, sensors and a valve switch. github.com/home-assistant/core/issues/171600, opened 2026-05-20 and OPEN at time of research, reports authentication failing against https://api.meetflo.com/api/v1/users/auth for migrated accounts on HA Core 2026.5.3. Because Moen made migration mandatory as of 2026-05-01, this affects new setups generally. — counterparty-source research, verified 2026-07-19 · solutions.moen.com FAQ pages plus the Google Play listing — the legacy Flo by Moen app deactivates 2026-05-01, migration moved from optional to required, the old app is being pulled from stores during 2026, and data plus FloProtect subscriptions carry over with FloProtect still managed at user.meetflo.com — vendor-support research, verified 2026-07-19 · The 900-001 spec sheet and current shop.moen.com pages state 'Works with Amazon Alexa', while solutions.moen.com/Article_Library/Enable_Moen_Alexa_Skill states the skill covers 'currently the Moen Smart Faucet, Smart Sprinkler Controller, and Smart Sump Pump Monitor' — omitting the Flo Shutoff. A separate legacy Flo Technologies skill exists. Unresolved in either direction. — vendor-page and vendor-support research, verified 2026-07-19 · solutions.moen.com integration-setup documentation enumerates Ring (US only), Google Home, Control4 and Alarm.com with no HomeKit path for Flo, while Moen separately documents HomeKit support for its Smart Showers — so the absence is a product distinction, not a documentation gap. github.com/haywirecoder/homebridge-flobymoen (v1.0.21, 2026-04-21) provides an unofficial route and self-describes as using the unofficial cloud API. — vendor-support and counterparty-source research, verified 2026-07-19 · solutions.moen.com Wi-Fi FAQ confirms the device 'is Wi-Fi enabled, not Wi-Fi dependent', continues monitoring and stores usage data locally during an outage, and that 'Real-time alerts and remote control features require an active internet connection'. IT DOES NOT STATE whether automatic shutoff still fires offline, and secondary sources actively contradict each other on the point — some say the shutoff logic is on-device, at least one says unusual-usage detection and auto-shutoff require internet. Recorded as unresolved rather than decided, because it is the single most consequential open question for this category. Behaviour if Moen's cloud were discontinued is likewise undocumented. — vendor-support research, verified 2026-07-19 · cpsc.gov recall notice (2023-04-13) plus Moen's own recall page — ALL Flo Lithium-Ion Battery Back-Ups, model 920-001, roughly 10,000 units sold 2019-08-30 to 2022-11-18, recalled for fire hazard after three overheating or fire reports with no injuries, remedy refund only. The currently sold 920-008 is a different SKU; NO primary source designates it as the recall replacement, so that connection is not asserted here. — regulator-source research, verified 2026-07-19 · solutions.moen.com automatic health test article — the device 'will close its valve', running 30 seconds to 4 minutes, once daily by default and configurable up to three times, auto-cancelling and retrying if water is used, detecting down to one drop per minute, and stating 'If the Automatic MicroLeak Test is disabled, your product warranty and FloProtect deductible… may be void.' — vendor-support research, verified 2026-07-19 · solutions.moen.com Flo insurance verification letter page — Moen offers a verification letter and directs buyers to 'Contact your home insurance company for details on any discounts or rebates', making no discount claim of its own — vendor-support research, verified 2026-07-19 · Moen's own Smart Water Detector is the documented path for point-leak-triggered shutoff. Of the third-party routes, only Control4 is confirmed: solutions.moen.com integration documentation describes a 'custom leak alarm with automatic shutoff', and that is a dealer-installed channel. Ring can display and control the valve (US only) and Alarm.com can open and close it, but whether a Ring or Alarm.com leak sensor can TRIGGER closure through routines is unverified in both cases and is not asserted. Home Assistant would be the natural cross-brand bridge and is currently broken. For a DIY buyer today, assume third-party sensors cannot close this valve. — vendor-support research, verified 2026-07-19 · shop.moen.com support page — Moen 'recommend[s] using a plumbing professional for installation, since the Moen Flo Shutoff is a precision-engineered device and installation requires removing a section of your main water pipe.' It installs after the meter, main shutoff and PRV on the cold main, is prohibited on piping branching to residential fire sprinklers and in NFPA 70 hazardous locations, and needs ambient temperatures between 32 °F and 140 °F. The spec sheet's 1-year warranty states no professional-installation condition, but the full warranty document was not retrieved, so no claim is made that professional installation is or is not required for warranty; FloProtect's guarantee separately does require the product be 'properly installed'. — vendor-page and vendor-spec-sheet research, verified 2026-07-19 · Matter is not named on Moen's spec sheet, support pages or product pages, and no Moen entry surfaced in a csa-iot.org certified-products search — but that search was explicitly non-exhaustive against 1,533 result pages, so this is recorded as no evidence found rather than as a confirmed absence. — registry research, verified 2026-07-19. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →
Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.