Product Library / Water Protection & Plumbing

Research profile · verified 2026-08-13 · sources re-checked 2026-11-02

Phyn Plus Smart Water Assistant + Shutoff (2nd Gen)

Compatibility at a glance

Does it work with your home?

[7][22][38][46]
[30][37][45]
[6][21][41][61][70]
[22][38][46]
[9][19][62]

Choose your platform to see its setup and functions. Your choice carries across product pages.

A connection can work while individual controls or automations remain unconfirmed. Read the connection details ↓

Protocols: WIFI[13][23]

Before you buy

What do you need to make it work?

No hub for the device alone

Choose a platform above for its connection. A hub can be optional for the device itself and required for a platform or automation.

One device can provide more than one role. These are setup requirements, not a shopping list of separate purchases.

What could you do with this?

Put its functions to use.

Research, not hands-on testing

Start with a documented control or event. The selected connection shows what is confirmed for that platform.

Documented device function

Valve

The device supports this control.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [25] [37] [45]

Documented device function

Leak detected

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [25] [37] [45]

Documented device function

Water flow

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [25] [37] [45]

A documented control or event is one part of a setup. It does not by itself establish a complete automation.

The functions, side by side

What can you use, and where?[25][37][45]

A platform connection does not confirm every function. Controls and reported events are shown separately from what an automation can use.

Controls
1 documented
Reported events
2 documented

Compare all five platforms. On a narrow screen, scroll the table sideways.

Documented device functions, platform controls and automation availability
Device functionApple HomeDoesn't work[7][22][38][46]Google HomeWorks[30][37][45]AlexaWorks, by a limited route[6][21][41][61][70]SmartThingsInconclusive[22][38][46]Home AssistantInconclusive[9][19][62]
ValveDevice control
Control

Doesn't work

Control

Not stated

Control

Not stated

Control

Inconclusive

Control

Inconclusive

Leak detectedReported event
Event

Doesn't work

Event

Not stated

Event

Not stated

Event

Inconclusive

Event

Inconclusive

Water flowReported event
Event

Doesn't work

Event

Not stated

Event

Not stated

Event

Inconclusive

Event

Inconclusive

Automation availability for this model is not established.

✓ Documented for this connection. × A stated limit. ◐ A partial function. ? Not established. A listed device function does not establish a complete routine, its other equipment or any plan requirements.

Setup and sources

Apple Home

No Apple Home support. Phyn's own product page lists only Alexa, Google Home and IFTTT, and published third-party testing states affirmatively that there is no HomeKit support. Worth knowing the history: Belkin announced a HomeKit-enabled Phyn water assistant in 2019 and it never shipped. The only route is Home Assistant plus a HomeKit bridge.[7][22][38][46]

Google Home

Status, leak queries, and opening and closing the valve. The same missing-PIN concern applies as with Alexa — nothing documented prevents a voice command from shutting off or restoring your water. This comes from Phyn's own documentation only; we did not find a Works with Google directory entry to confirm it from Google's side.[30][37][45]

Alexa

Through a voice skill you ask by name rather than through Alexa's own device controls. Phyn's instructions have you enable the Phyn Device skill and say things like 'Alexa, ask Phyn Device to turn off my water' or 'to turn on my water', and ask how much water you used. Phyn describes only voice commands, and does not say whether the valve appears as a device you can put in an Alexa Routine, such as one triggered by a leak sensor. No voice PIN is mentioned for closing or reopening your water supply.[6][21][41][61][70]

SmartThings

No path was found, and the evidence leans strongly toward none, but nothing settles it. The only substantive source is a SmartThings community thread from December 2019 that ended unresolved, with the observation that Phyn had closed off outside access, and no SmartThings driver exists. Recorded as unknown rather than no, because a seven-year-old forum thread is not a vendor statement in either direction.[22][38][46]

Home Assistant

Not established. Phyn names no Home Assistant route, and Home Assistant ships no Phyn integration of its own. A community-built add-on offers valve control plus usage, temperature, pressure and flow, signing in to Phyn's cloud with your account password, but neither Phyn nor Home Assistant stands behind it, and it has broken before when Phyn changed its service.[9][19][62]

Device documentation: [25] [37] [45]

Listed device functions are established from vendor documentation. An ability missing here is unestablished, not necessarily absent.

Connection details and setup sources
EcosystemSupportThe catch
Amazon AlexaWorks, by a limited routeWorks, by a limited route — see the catch[6][21][41][61][70]Through a voice skill you ask by name rather than through Alexa's own device controls. Phyn's instructions have you enable the Phyn Device skill and say things like 'Alexa, ask Phyn Device to turn off my water' or 'to turn on my water', and ask how much water you used. Phyn describes only voice commands, and does not say whether the valve appears as a device you can put in an Alexa Routine, such as one triggered by a leak sensor. No voice PIN is mentioned for closing or reopening your water supply.
Google HomeWorksWorks with this ecosystem[30][37][45]Status, leak queries, and opening and closing the valve. The same missing-PIN concern applies as with Alexa — nothing documented prevents a voice command from shutting off or restoring your water. This comes from Phyn's own documentation only; we did not find a Works with Google directory entry to confirm it from Google's side.
Apple HomeDoesn't workVerified: does not work with this ecosystem[7][22][38][46]No Apple Home support. Phyn's own product page lists only Alexa, Google Home and IFTTT, and published third-party testing states affirmatively that there is no HomeKit support. Worth knowing the history: Belkin announced a HomeKit-enabled Phyn water assistant in 2019 and it never shipped. The only route is Home Assistant plus a HomeKit bridge.
SmartThingsInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[22][38][46]No path was found, and the evidence leans strongly toward none, but nothing settles it. The only substantive source is a SmartThings community thread from December 2019 that ended unresolved, with the observation that Phyn had closed off outside access, and no SmartThings driver exists. Recorded as unknown rather than no, because a seven-year-old forum thread is not a vendor statement in either direction.
Home AssistantInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[9][19][62]Not established. Phyn names no Home Assistant route, and Home Assistant ships no Phyn integration of its own. A community-built add-on offers valve control plus usage, temperature, pressure and flow, signing in to Phyn's cloud with your account password, but neither Phyn nor Home Assistant stands behind it, and it has broken before when Phyn changed its service.

? Inconclusive means we researched that ecosystem and the evidence doesn’t settle it — the catch says why, and the sources are listed below. It is a statement about the available evidence, never a verdict on the product. A Setup Check researches your exact setup where the official sources don’t answer.

Plans and ongoing costs[2][18][40][48]

✓ Works without a subscription: Yes.

Vendor account required: Not established — we have not sourced this yet.

Unusually, this is an AFFIRMATIVE vendor claim rather than an absence argument. Phyn states 'No subscription fees. At Phyn, we believe that your data is yours. We don't charge you a fee to access your water use data' and 'We think you shouldn't have to pay a monthly subscription to help save our water.' The app carries no in-app purchases, and the auto-shutoff help article documents the feature end to end with no fee or plan language anywhere. No plan names, tiers or prices exist on phyn.com, the help centre or either app store. One precision caveat: the verbatim no-subscription clause is scoped in its own explanatory sentence to DATA ACCESS — but nothing anywhere gates shutoff, and there is no plan structure with which to gate it.

Maintenance and offline use[1][20]

Who it's for

Homeowners with an accessible main, a nearby outlet and a willingness to pay a plumber, who want whole-home leak detection without scattering point sensors, and who value the absence of a subscription — over five to ten years that is a real cost advantage against subscription-tied competitors. It fits Alexa and Google households, and Home Assistant users willing to rely on a community add-on that Phyn does not support. It is a poor fit for Apple Home households, SmartThings-centric setups, renters, homes on well or non-potable supply, homes with branch plumbing ahead of the install point, and anyone unwilling to add a UPS to cover the power-outage gap.

Check availability at Phyn

This opens Phyn's own website. We earn nothing from this link.

Sources & method

Numbered sources below back the facts marked with the matching number above. 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 →

80 numbered sources· read them in the source's own words
  1. [1] phyn.com/products/phyn-plus-smart-water-assistant-shutoff-v2 — active cart at $579.99, outlet within 12 ft, valve 'will remain in the state it was in when the power is lost', manual tool on the bracket, Alexa/Google/IFTTT only, licensed plumber recommended. SKU PHYPF007 corroborated by Home Depot and SupplyHouse listings. — Read on the maker's own site, verified 2026-07-19
    Backs: Product identity, Price, Works without the internet
  2. [2] phyn.com/pages/phyn-plus-difference states 'No subscription fees… We don't charge you a fee to access your water use data' and 'We think you shouldn't have to pay a monthly subscription to help save our water.' The App Store listing shows the app as free with no in-app-purchase section. helpcenter.phyn.com auto-shutoff article documents the feature with no fee or plan language. No plan names, tiers or prices exist anywhere across phyn.com, the help centre or either app store. — Read on the maker's own site, verified 2026-07-19
    Backs: Subscription
  3. [3] helpcenter.phyn.com/help/what-is-offline-leak-protection-and-how-does-it-work (page last updated 2026-01-30) — activates when the unit has power but no Wi-Fi or Phyn cloud, monitors for a high flow rate plus continuous flow duration, and 'If both thresholds are met, Phyn Plus will automatically shut off your water.' Vendor-stated limits: 'Leak detection during offline mode is limited to catastrophic leak protection only', no push or SMS alerts until reconnection, and the valve must be reopened by physically pressing and holding the blue button. Numeric thresholds are not published. NOTE THE ASYMMETRY: Phyn's puck sensors relay through the Phyn cloud, so puck-triggered shutoff does NOT work offline, unlike the valve's own pressure sensing. — Read on the maker's own site, verified 2026-07-19
  4. [4] helpcenter.phyn.com/help/what-is-auto-shutoff-and-how-does-it-work — 'Auto Shutoff is disabled by default while Phyn learns your home's water usage patterns', unlocking after 700 water events for most homes or 1,000 for homes with irrigation, a pool or a softener, and 'Regardless of the number of water events, Auto Shutoff will automatically become available after 21 days.' — Read on the maker's own site, verified 2026-07-19
  5. [5] helpcenter.phyn.com irrigation article — if an irrigation system 'is fed from a separate supply line, Phyn Plus will unfortunately be unable to monitor and protect that system' — Read on the maker's own site, verified 2026-07-19
  6. [6] helpcenter.phyn.com Alexa article documents the invocation 'Alexa, ask Phyn Device to turn off my water' and makes no mention of Routines. Custom-skill grammar of this form is not normally usable as a Routine action, but no source confirms or denies it for this skill — recorded as the highest-value open question on this record, because leak-sensor-triggers-valve via a Routine is precisely what buyers assume works. No voice PIN is documented for either direction. — Read on the maker's own site, verified 2026-08-20
    Backs: Amazon Alexa compatibility
  7. [7] Phyn's own product page lists only Alexa, Google Home and IFTTT; published third-party testing (TechHive review of the 2nd gen) states affirmatively that there is no HomeKit support; a 2019 Belkin announcement of a HomeKit-enabled Phyn water assistant never shipped. The negative rests on an affirmative published statement plus vendor enumeration, not on silence alone., verified 2026-08-20
    Backs: Apple Home compatibility
  8. [8] community.smartthings.com thread 180388 (December 2019) ended unresolved with a report that Phyn had closed the connection other software used to reach its service, with no replies after 2019-12-12, and no Edge driver was located. That is not a vendor statement in either direction, so the level stays unknown despite leaning strongly toward none. — Read what the other company publishes, verified 2026-08-22Someone's observation, checked 2026-08-22This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-08-22.
  9. [9] github.com/jordanruthe/homeassistant-phyn, v2026.6.3 released 2026-06-20, exposing valve control plus usage, temperature, pressure and flow; it signs in to Phyn's closed cloud service with the owner's own password, broke on 2025-06-11 when Phyn changed that service, and was patched the same day. The earlier MizterB fork was archived 2025-08-31. — Read what the other company publishes, verified 2026-07-19Someone's observation, checked 2026-07-19This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-07-19.
    Backs: Home Assistant compatibility
    page changed on 2026-11-02, after this reading
  10. [10] Phyn's own Smart Water Sensor triggers the valve natively in-app per helpcenter.phyn.com. Third-party sensors have two confirmed routes: a dated first-person Home Assistant community report (2024-10-09) of an IKEA BADRING Zigbee sensor closing the Phyn valve through the community integration, and official IFTTT applets (ifttt.com/phyn — one trigger, three actions) whose polling latency is 5 minutes on paid plans and 1 hour on free, which substantially undermines the point of automatic shutoff. No direct SmartThings or Ring path was found. — Read on the maker's own site, verified 2026-07-19
  11. [11] phyn.com/pages/warranty states TWO years from delivery, conditioned on installation per Phyn's installation guide and applicable code, NOT on a plumber credential. MYTHS TO REJECT: claims of a '3-year warranty if professionally installed' and that 'warranty claims require a plumber license number' both trace to a single plumbing contractor's blog — an interested party — and appear nowhere in Phyn's warranty text. Also note phyn.com/pages/find-a-phyn-pro states a Phyn Pro is 'not an employee, agent, representative, joint venturer, or partner of Phyn LLC', so the directory is not a certification. — Read on the maker's own site, verified 2026-07-19
  12. [12] Outlet distance is 12 ft on the product page and 11 ft in the help centre. Professional installation is 'recommended' on the product and installation pages but listed as a hard requirement on the setup-requirements page. Rated pressure appears as 125 psi in the headline specs against a 100 psi maximum-working note in installer documentation, likely a materials-versus-certification distinction. — Read on the maker's own site, verified 2026-07-19
  13. [13] A csa-iot.org certified-products search for Phyn returned no entries and no public Phyn Matter commitment was found. Recorded as no evidence of Matter support rather than as a confirmed absence, because the registry's filter-driven interface does not permit a clean asserted negative. — Checked a certification register, verified 2026-07-19
    Backs: Protocols
  14. [14] phyn.com selling the 2nd gen with a live cart 2026-07-19, footer '© 2026 Phyn LLC'. Announced 2021-11-01. The 1st generation (PHNSWA01) is off the shop but still covered by a combined 1st+2nd gen support section, and no formal end-of-life notice was found for it., verified 2026-08-20
    Backs: Market availability
  15. [15] Help-center articles updated 2026-01-30 and 2026-02-05; Phyn app v8.23.0 shipped around 2026-07-01, roughly three weeks before this check. No shutdown, end-of-life or cloud-sunset notice found., verified 2026-07-19
    Backs: Service status
  16. [16] Phyn's own store listing for this model, at phyn.com/products/phyn-plus-smart-water-assistant-shutoff-v2, read 2026-08-13 in the structured form the shop publishes for its own use rather than as marketing copy: $579.99, no crossed-out earlier price, in stock, one version only. Character for character the same as the 2026-07-19 read. — Read on the maker's own site, verified 2026-08-13
    Backs: Price, Market availability
  17. [17] itunes.apple.com/search?term=Phyn&entity=software&country=us read 2026-08-13 returns Phyn by PHYN LLC: version 8.24.0, currentVersionReleaseDate 2026-08-12T23:57:04Z, averageUserRating 4.70 across 2,645 ratings. A release ONE DAY before this check is the strongest available evidence on this axis, and it is the specific thing the ownership-churn concern in this note needed testing against — 'sold twice in four years' is a real risk fact, and an app shipped yesterday is a real counter-fact. Neither cancels the other; the note keeps both. ⊕ Read from Apple's own structured search results, so the version and the date are stated values rather than text lifted off a page. — Read what the other company publishes, verified 2026-08-13
    Backs: Service status
  18. [18] phyn.com/pages/phyn-plus-difference read 2026-08-13 still carries, word for word: 'At Phyn, we believe that your data is yours.' / 'We don't charge you a fee to access your water use data.' / 'We think you shouldn't have to pay a monthly subscription to help save our water.' The precision caveat this record already records survives the re-read intact and is worth restating: the verbatim clause is scoped to DATA ACCESS in its own explanatory sentence — it is the absence of any plan structure anywhere, not this sentence, that establishes shutoff is not gated. — Read on the maker's own site, verified 2026-08-13
    Backs: Subscription
  19. [19] github.com/jordanruthe/homeassistant-phyn latest release read from GitHub's own release listing on 2026-08-13: v2026.8.1, published 2026-08-01, repository not archived. The record's previous figure was v2026.6.3 (2026-06-20), so this is a genuine advance rather than a re-stamp. The release body is 'Fix: Migrate deprecated service helper imports for HA 2026.8 compatibility' — routine upkeep tracking Home Assistant's own release train, which is exactly the signal the 'partial / fragile support model' rating turns on. The fragility qualifiers are unchanged and deliberately kept: one volunteer maintainer, Phyn's closed cloud service, an account password, and the 2025-06-11 break when Phyn changed that service. — Read what the other company publishes, verified 2026-08-13Someone's observation, checked 2026-08-13This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-08-13.
    Backs: Home Assistant compatibility
    page changed on 2026-11-02, after this reading
  20. [20] phyn.com product page read 2026-08-13. Confirmed unchanged: 'Main water supply line 1 1/4" or smaller', '1" NPSM male threaded ends', 'Power outlet within 12 feet of installation', one-to-two-hour install, ultrasonic flow sensor with no moving parts. BACKUP BATTERY: still absent from the page in either direction — the page documents the manual shutoff tool on the mounting bracket as the power-loss fallback and never mentions a battery, which is why this record says unestablished rather than 'none'. ⚠ SCOPE OF THIS ENTRY, stated so it cannot be over-read: the psi, GPM and temperature figures in the maintenance note are NOT re-verified here — they came from a spec sheet in July and today's page does not carry them. The 11-ft-vs-12-ft vendor disagreement stands: this page still says 12. — Read on the maker's own site, verified 2026-08-13
    Backs: Product identity, Works without the internet
  21. [21] helpcenter.phyn.com Alexa article read 2026-08-13. The skill is named 'Phyn Device' and every documented command uses custom-skill grammar: 'Alexa, ask Phyn Device how much water I used today.', 'Alexa, ask Phyn Device to turn off my water.', 'Alexa, ask Phyn Device to turn on my water.', plus a multi-home form. The article mentions no PIN, no confirmation step beyond account linking, and no Routines. That silence is the cell's whole catch and it is unchanged: 'ask <skill>' grammar is not normally usable as a Routine action, so the pairing most buyers assume — a third-party leak sensor triggering this valve in one Routine — remains unconfirmed, and nothing documented stands between a spoken command and your water supply. — Read on the maker's own site, verified 2026-08-13
    Backs: Amazon Alexa compatibility
  22. [22] phyn.com product page read 2026-08-13 names Amazon Alexa, Google Assistant and IFTTT, and nothing else. Apple Home, HomeKit, SmartThings and Matter appear nowhere on it. That is a re-read of the SAME evidence the apple cell already rests on (a vendor list that omits Apple), and it changes neither cell. SmartThings deliberately stays 'unknown' rather than moving to 'none': a vendor page that does not mention SmartThings is not a vendor statement that SmartThings does not work, and the only other source remains an unresolved 2019 community thread. The distinction is the point — 'we found no path' and 'there is no path' are different claims and this record only has evidence for the first. — Read on the maker's own site, verified 2026-08-13
    Backs: Apple Home compatibility, SmartThings compatibility
  23. [23] csa-iot.org/csa-iot_products/?p_keywords=phyn read 2026-08-13 returns 'No Entries Found'. Validated as a true negative the same day by running the identical search with p_keywords=aqara, which returned a full page of Matter certificates — so the search worked at the moment phyn returned nothing. Corroborated by the vendor's own product page, which names no Matter support. protocols stays wifi-only. — Checked a certification register, verified 2026-08-13
    Backs: Protocols
  24. [24] Re-verification performed 2026-08-13: price and stock from the store's own structured product data ($579.99, available, no crossed-out earlier price) · the no-subscription claim re-read verbatim on phyn.com · install and hardware constraints from the product page · the Alexa custom-skill grammar from the help centre · the community Home Assistant integration's version from GitHub's own release listing (v2026.8.1, 2026-08-01) · Matter negative re-run with a live control test · vendor app currency from Apple's own structured search results (v8.24.0, shipped 2026-08-12). No integration level changed. The stored price was corrected from a rounded 580 to 579.99. — Re-checked this against its sources, verified 2026-08-13
    Backs: Research status
  25. [25] phyn.com/products/phyn-plus-smart-water-assistant-shutoff-v2, read 2026-08-20: "Turn off your tap, with a tap" from the Phyn app from anywhere, and "Phyn Plus can turn your water off automatically in the event of a leak"; it will "alert you the second a leak is detected" using "patented, high-definition pressure wave analysis"; and an "ultrasonic flow sensor" supports "Monitor how much water your family is using monthly, daily, and even hourly in the Phyn app". — Read on the maker's own site, verified 2026-08-20
    Backs: Capabilities
  26. [26] Phyn's help-centre article cited by this record was read 2026-08-20 and contains no statement about Wi-Fi, hubs, bridges or setup requirements — it addresses the Alexa question only. phyn.com, the vendor's main site and the source of this record's product-page citations, is on our register of hosts that turn us away, so no first-party setup or specification page could be reached that day. — Read on the maker's own site, verified 2026-08-20
    Backs: Required hub or bridge
  27. [27] phyn.com/products/phyn-plus-smart-water-assistant-shutoff-v2 (read 2026-08-22, answering normally), verbatim: 'Phyn Needs: Main water supply line 1 1/4” or smaller · WiFi at install location · Power outlet within 12 feet of installation' · 'One Phyn Plus in a single location is all you need to monitor your entire home's water system for leaks.' · 'Phyn plays well with others — Phyn works seamlessly with Amazon Alexa and Google Assistant. And with IFTTT you can have Phyn trigger actions with other smart home products.' · FAQ: 'What if I have a weak Wi-Fi signal where Phyn Plus will be installed? If your installation location is out of the range of your home's Wi-Fi you may want to consider adding a repeater or Wi-Fi extender.' — Read on the maker's own site, verified 2026-08-22
    Backs: Required hub or bridge
  28. [28] No source was read for this entry. It classifies evidence this record already carries, and records the classification so it is not re-derived., verified 2026-08-22
  29. [29] Record-keeping entry: the migrated research stamp was retired from this record on 2026-08-30, verified 2026-08-30
  30. [30] Phyn, Phyn Plus Smart Water Assistant + Shutoff (2nd gen) product page (https://phyn.com/products/phyn-plus-smart-water-assistant-shutoff-v2), read 2026-09-03, answering normally. Under the heading "Phyn plays well with others", verbatim: "Phyn works seamlessly with Amazon Alexa and Google Assistant. And with IFTTT you can have Phyn trigger actions with other smart home products." Neither Apple Home nor SmartThings is named anywhere on the page. — Read on the maker's own site, verified 2026-09-03
    Backs: Google Home compatibility
  31. [31] https://helpcenter.phyn.com/ (read 2026-09-09) links https://apps.apple.com/us/app/phyn/id1338894928 and https://play.google.com/store/apps/details?id=com.phyn. No third mobile platform is named. — Read on the maker's own site, verified 2026-09-09
    Backs: App platforms
  32. [32] The three Phyn pages cited on this record (read 2026-09-09) are help-centre articles about connectivity troubleshooting and carry no band, frequency or power specification. Both stay blank: checked, and not published. — Read on the maker's own site, verified 2026-09-09
  33. [33] the record's own customer-facing prose fields as they stood before 2026-09-10 (no new external read), verified 2026-09-10
  34. [34] phyn.com product page and 'Phyn Plus difference' page, helpcenter.phyn.com (home and the Alexa article), the community Home Assistant integration README and its release record, the SmartThings community thread and the CSA search, re-read 2026-09-10 under our rules for reading other people's sites; itunes.apple.com/search was not read, because Apple's own robots file disallows it. Product page: the valve 'will not turn off your water unless it was already in the closed position. In the event of power loss, you can use the manual shut off tool included on the mounting bracket'. Community README: 'The integration's IoT class is Cloud Polling, meaning the Home Assistant integration with this device happens via the Phyn cloud service. As such it requires an active internet connection to see updates and make changes'. — Read on the maker's own site, verified 2026-09-10
  35. [35] Record-keeping entry, 2026-09-15: this record already said Apple Home is not supported, and that answer now names the shared Apple Home rule the reason rests on, verified 2026-09-15
  36. [36] Phyn's own store listing for the Phyn Plus (2nd Gen), read 2026-09-24. The listing is titled "Phyn Plus Smart Water Assistant + Shutoff (2nd Gen)", is sold by Phyn, and sells a single version: part code PHYPF007, barcode 745883825646. — Read on the maker's own site, verified 2026-09-24
    Backs: Certification and product IDs
    page changed on 2026-10-27, after this reading
  37. [37] Phyn's own product page for the Phyn Plus (2nd Gen), read in full 2026-09-26 through tools/page-read.mjs. Verbatim: "Phyn Needs: Main water supply line 1 1/4” or smaller WiFi at install location Power outlet within 12 feet of installation" · "Phyn works seamlessly with Amazon Alexa and Google Assistant. And with IFTTT you can have Phyn trigger actions with other smart home products." · "you can remotely turn off the water, and Phyn Plus can turn your water off automatically in the event of a leak" · "Monitor how much water your family is using monthly, daily, and even hourly in the Phyn app." · "We recommend that you use a licensed plumber to install Phyn Plus. The main water line to your home will be cut where Phyn Plus is installed." · "You will need an electrical outlet within 12 feet of where the device is installed (we recommend a GFCI equipped outlet). Phyn Plus comes with a 12-foot power cord." · "What’s in the box Phyn Plus Power Adapter". — Read on the maker's own site, verified 2026-09-26
    Backs: Product identity, Required hub or bridge, Google Home compatibility, Capabilities, Installation, Power source, Research status
  38. [38] Phyn's own product page, read in full 2026-09-26 through tools/page-read.mjs. Its only ecosystem sentence reads verbatim "Phyn works seamlessly with Amazon Alexa and Google Assistant. And with IFTTT you can have Phyn trigger actions with other smart home products." 'Apple Home', 'HomeKit', 'SmartThings' and 'Matter' appear nowhere on the page. — Read on the maker's own site, verified 2026-09-26
    Backs: Apple Home compatibility, SmartThings compatibility
  39. [39] Phyn's own store product data for the Phyn Plus (2nd Gen), read 2026-09-26 through tools/page-read.mjs (fingerprint matched change detection's copy). Verbatim fields: "sku":"PHYPF007" "price":57999 with no compare-at price, "available":true, one variant. — Read on the maker's own site, verified 2026-09-26
    Backs: Price, Market availability
    page changed on 2026-10-27, after this reading
  40. [40] Phyn's 'Phyn Plus Difference' page, read in full 2026-09-26 through tools/page-read.mjs. Verbatim: "No subscription fees At Phyn, we believe that your data is yours. We don’t charge you a fee to access your water use data." and "We think you shouldn’t have to pay a monthly subscription to help save our water." — Read on the maker's own site, verified 2026-09-26
    Backs: Subscription
  41. [41] Phyn help-centre article 'Can I use Alexa voice commands with my Phyn Plus?' (last updated 26 Jan, 2026), read in full 2026-09-26 through tools/page-read.mjs (fingerprint matched change detection's copy). Verbatim: "by enabling the Phyn Device skill in the Amazon Alexa app" · "“Alexa, ask Phyn Device to turn off my water.” “Alexa, ask Phyn Device to turn on my water.”" · "Download the latest version of the Phyn app from the Apple App Store or Google Play." — Read on the maker's own site, verified 2026-09-26
    Backs: Amazon Alexa compatibility, App platforms
  42. [42] The community Home Assistant integration's README, read in full 2026-09-26 through tools/page-read.mjs (fingerprint matched change detection's copy). Verbatim: "The integration's IoT class is Cloud Polling , meaning the Home Assistant integration with this device happens via the Phyn cloud service. As such it requires an active internet connection to see updates and make changes" · "Shutoff valve control" · "provide existing Phyn username and password". — Read what the other company publishes, verified 2026-09-26Someone's observation, checked 2026-09-26This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-09-26.
    page changed on 2026-11-02, after this reading
  43. [43] GitHub's latest-release record for the community Phyn integration, read 2026-09-26 through tools/page-read.mjs (fingerprint matched change detection's copy). Verbatim: "tag_name":"v2026.9.1" "published_at":"2026-09-20T11:57:41Z" and the release body "fix lifetime consumption reporting unknown". — Read what the other company publishes, verified 2026-09-26Someone's observation, checked 2026-09-26This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-09-26.
    page changed on 2026-11-02, after this reading
  44. [44] Read record for the other Phyn pages opened 2026-09-26 through tools/page-read.mjs, plain basis: helpcenter.phyn.com home (14ea33fe2b5cbf4410102a313aa1cbcee54762aaa2946e581d46c12c47fb59e6, matched) · the SmartThings community thread 180388 (55a90ef025bb3e75ee47dc119e107917a27b22634a9e7d32b168104516a6081b) · the CSA certified-products search for 'phyn' (f8b79aef34e6d59352750c346ce5959d7fbee73f741d6d58699ec4310c7d32a1) with a same-session control search for 'aqara' (0a6524def0b0d0a7036ff51d4cf6f30bbe35e3c7292aeda95046dcbb3bc58ac3). — Re-checked this against its sources, verified 2026-09-26
  45. [45] Phyn's own product page for the Phyn Plus (2nd Gen), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "Phyn Plus Smart Water Assistant + Shutoff (2nd Gen)" · "Phyn Needs: Main water supply line 1 1/4” or smaller WiFi at install location Power outlet within 12 feet of installation" · "Phyn works seamlessly with Amazon Alexa and Google Assistant. And with IFTTT you can have Phyn trigger actions with other smart home products." · "With Phyn Plus’ built-in shutoff valve, you can remotely turn off the water, and Phyn Plus can turn your water off automatically in the event of a leak." · "We recommend that you use a licensed plumber to install Phyn Plus. The main water line to your home will be cut where Phyn Plus is installed." · "You will need an electrical outlet within 12 feet of where the device is installed" · "Phyn Plus comes with a 12-foot power cord." · "What’s in the box Phyn Plus Power Adapter". — Read the original source directly, verified 2026-10-04
    Backs: Product identity, Required hub or bridge, Google Home compatibility, Capabilities, Installation, Power source
  46. [46] Phyn's own product page, read in full on 2026-10-04 through tools/page-read.mjs. Its only ecosystem sentence reads verbatim "Phyn works seamlessly with Amazon Alexa and Google Assistant. And with IFTTT you can have Phyn trigger actions with other smart home products." 'Apple Home', 'HomeKit', 'SmartThings' and 'Matter' appear nowhere on the page. — Read the original source directly, verified 2026-10-04
    Backs: Apple Home compatibility, SmartThings compatibility
  47. [47] Phyn's own store product data for the Phyn Plus (2nd Gen), read on 2026-10-04 through tools/page-read.mjs. Verbatim fields: "sku":"PHYPF007" "available":true "price":57999 "barcode":"745883825646" "requires_selling_plan":false and no compare-at price, one variant. — Read on the maker's own site, verified 2026-10-04
    Backs: Price, Market availability, Certification and product IDs
    page changed on 2026-10-27, after this reading
  48. [48] Phyn's 'Phyn Plus Difference' page, read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "No subscription fees At Phyn, we believe that your data is yours. We don’t charge you a fee to access your water use data." and "We think you shouldn’t have to pay a monthly subscription to help save our water." — Read the original source directly, verified 2026-10-04
    Backs: Subscription
  49. [49] Phyn help-centre article 'Phyn Plus Setup Requirements' (last updated on 27 Jan, 2026), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "Professional installation by a licensed plumber or a member of the Uponor Pro Squad" · "1st Generation: within 15 feet" · "2nd Generation: within 11 feet" · "Phyn Plus includes a power cord: 15 ft (1st Gen) 11 ft (2nd Gen)" · "A dedicated 2.4 GHz Wi-Fi network" · "Android phone or tablet supported by the manufacturer, running the current or previous two Android versions" · "iPhone or iPad supported by Apple, running the current or previous iOS version". — Read the original source directly, verified 2026-10-04
    Backs: App platforms
  50. [50] Phyn help-centre article 'Where should I install my Phyn Plus?' (last updated on 26 Jan, 2026), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "Phyn monitors only the plumbing downstream (after) the device." · "Phyn Plus must be installed within 11 feet of a 120V electrical outlet". — Read the original source directly, verified 2026-10-04
  51. [51] Phyn help-centre article 'What is “Offline Leak Protection” and how does it work?' (last updated on 30 Jan, 2026), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "Offline Leak Protection helps protect your home from catastrophic leaks even when your Phyn Plus temporarily loses its Wi-Fi connection." · "If both thresholds are met, Phyn Plus will automatically shut off your water to help prevent major damage." · "Leak detection during offline mode is limited to catastrophic leak protection only" · "You will not receive in-app push notifications" · "You will not be able to turn the water back on using the Phyn App" · "You must press and hold the blue button on the Phyn Plus device to reopen the valve". — Read the original source directly, verified 2026-10-04
    Backs: Works without the internet
    page unchanged as of 2026-11-02
  52. [52] Phyn help-centre article 'What is Auto Shutoff and how does it work?' (last updated on 26 Feb, 2026), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "Auto Shutoff is disabled by default while Phyn learns your home’s water usage patterns." · "Regardless of the number of water events, Auto Shutoff will automatically become available after 21 days". — Read the original source directly, verified 2026-10-04
  53. [53] Phyn help-centre article 'Installing a Phyn Plus with an Irrigation System' (last updated on 20 Feb, 2026), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "In this setup, the irrigation line branches off before the Phyn Plus." · "Phyn will not monitor irrigation water usage". — Read the original source directly, verified 2026-10-04
  54. [54] Phyn's warranty page, read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "for a period of two (2) years from the date of delivery to the purchaser". — Read the original source directly, verified 2026-10-04
  55. [55] Phyn help-centre article 'Can I use Alexa voice commands with my Phyn Plus?' (last updated on 26 Jan, 2026), read in full on 2026-10-04 through tools/page-read.mjs. Verbatim: "by enabling the Phyn Device skill in the Amazon Alexa app" · "Download the latest version of the Phyn app from the Apple App Store or Google Play." — Read the original source directly, verified 2026-10-04
  56. [56] The community Home Assistant integration's README on GitHub, read in full on 2026-10-04 through tools/page-read.mjs., verified 2026-10-04Someone's observation, checked 2026-10-04This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-04.
    page changed on 2026-11-02, after this reading
  57. [57] GitHub's latest-release record for the community Phyn integration, read on 2026-10-04 through tools/page-read.mjs: "tag_name":"v2026.9.1" "published_at":"2026-09-20T11:57:41Z"., verified 2026-10-04Someone's observation, checked 2026-10-04This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-04.
    page changed on 2026-11-02, after this reading
  58. [58] SmartThings Community thread 'PHYN Plus Integration', read in full on 2026-10-04 through tools/page-read.mjs. It still ends on December 12, 2019 with "Looks like they have the API closed.", verified 2026-10-04Someone's observation, checked 2026-10-04This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-04.
  59. [59] Phyn's help-centre home page, read on 2026-10-04 through tools/page-read.mjs. — Read the original source directly, verified 2026-10-04
  60. [60] Carried from this unit's reads of Phyn's product page and Phyn's 'Phyn Plus Setup Requirements' help-centre article, both read 2026-10-04., verified 2026-10-04
  61. [61] Phyn's help article 'Can I use Alexa voice commands with my Phyn Plus?' (last updated 26 Jan, 2026), read in full on 2026-10-04. Verbatim: "You can connect your Phyn Plus to an Amazon Echo and control it using Alexa voice commands by enabling the Phyn Device skill in the Amazon Alexa app." · "“Alexa, ask Phyn Device how much water I used today.”" · "“Alexa, ask Phyn Device to turn off my water.” “Alexa, ask Phyn Device to turn on my water.”" · "Your Phyn Plus is now ready to use with Alexa voice commands." The article names no Routine, no device in the Alexa app and no PIN. — Re-checked this against its sources, verified 2026-10-04
    Backs: Amazon Alexa compatibility
  62. [62] Home Assistant's documentation has no page at the address it uses for a built-in Phyn integration, checked on 2026-10-04 ("Oh no! This page does not exist"), so we could not find an official Home Assistant listing for Phyn., verified 2026-10-04
    Backs: Home Assistant compatibility
  63. [63] The jordanruthe/homeassistant-phyn repository, read on 2026-10-04: a "Home Assistant custom component for interfacing with Phyn Smart Water Assistant and Kohler H2Wise+ by Phyn", installed as a community add-on from a custom repository, IoT class Cloud Polling, providing "Shutoff valve control" and daily usage, temperature, pressure and flow. — Re-checked this against its sources, verified 2026-10-04Someone's observation, checked 2026-10-04This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-04.
    page changed on 2026-11-02, after this reading
  64. [64] GitHub's latest-release record for jordanruthe/homeassistant-phyn, read on 2026-10-04. — Re-checked this against its sources, verified 2026-10-04Someone's observation, checked 2026-10-04This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-04.
    page changed on 2026-11-02, after this reading
  65. [65] The Matter ledger's vendor registry, read on 2026-10-06 through tools/dcl-lookup.mjs, walked to the end of pagination (863 vendor records). Vendor names asked: 'Phyn' and 'Phyn LLC'. In our words: neither name matches a vendor registered as the maker of this shutoff valve. The readHash is the registry's first page as tools/page-read.mjs returned it. — Checked a certification register, verified 2026-10-06
  66. [66] The certification body's member page for Lumi United Technology (Aqara), read in full on 2026-10-06 as route (A)'s control. In our words: it carries a short company description and a link to the company's site, and lists no certified product and no certificate number, so it does not show the Door and Window Sensor P2 and the control failed. — Checked a certification register, verified 2026-10-06
  67. [67] The certification body's certified-products search, asked with 'Aqara P2' on 2026-10-06 as route (B)'s control. In our words: it served the unfiltered first page, with no Aqara product on it, so the control failed. — Checked a certification register, verified 2026-10-06
  68. [68] The certification body's certified-products search, asked with 'Meross' on 2026-10-06. In our words: it served the same first page, with the same fingerprint, as the 'Aqara P2' search, so the keyword was not applied. — Checked a certification register, verified 2026-10-06
  69. [69] Record-keeping entry: each maker disagreement on this page now says what is at stake for a buyer (the 2026-10-21 split into shown findings and research notes)., verified 2026-10-21
  70. [70] Phyn's help-centre article 'Can I use Alexa voice commands with my Phyn Plus?' (last updated 26 Jan, 2026), read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "You can connect your Phyn Plus to an Amazon Echo and control it using Alexa voice commands by enabling the Phyn Device skill in the Amazon Alexa app." · "“Alexa, ask Phyn Device how much water I used today.”" · "“Alexa, ask Phyn Device to turn off my water.” “Alexa, ask Phyn Device to turn on my water.”" · "Download the latest version of the Phyn app from the Apple App Store or Google Play." · "Your Phyn Plus is now ready to use with Alexa voice commands." — Re-checked this against its sources, verified 2026-10-27
    Backs: Amazon Alexa compatibility, App platforms
  71. [71] Phyn's help-centre article 'Phyn Plus Setup Requirements', read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "Professional installation by a licensed plumber or a member of the Uponor Pro Squad" · "2nd Generation: within 11 feet" · "A dedicated 2.4 GHz Wi-Fi network" · "Android phone or tablet supported by the manufacturer, running the current or previous two Android versions" · "iPhone or iPad supported by Apple, running the current or previous iOS version" — Re-checked this against its sources, verified 2026-10-27
    Backs: App platforms
  72. [72] Phyn's help-centre article 'What is “Offline Leak Protection” and how does it work?', read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "Offline Leak Protection helps protect your home from catastrophic leaks even when your Phyn Plus temporarily loses its Wi-Fi connection." · "If both thresholds are met, Phyn Plus will automatically shut off your water to help prevent major damage." · "Leak detection during offline mode is limited to catastrophic leak protection only" · "You will not be able to turn the water back on using the Phyn App" · "You must press and hold the blue button on the Phyn Plus device to reopen the valve" — Re-checked this against its sources, verified 2026-10-27
    Backs: Works without the internet
    page unchanged as of 2026-11-02
  73. [73] Phyn's help-centre article 'Where should I install my Phyn Plus?', read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "Phyn monitors only the plumbing downstream (after) the device." · "Phyn Plus must be installed within 11 feet of a 120V electrical outlet" — Re-checked this against its sources, verified 2026-10-27
  74. [74] Phyn's help-centre article 'What is Auto Shutoff and how does it work?', read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "Auto Shutoff is disabled by default while Phyn learns your home’s water usage patterns." · "Regardless of the number of water events, Auto Shutoff will automatically become available after 21 days" — Re-checked this against its sources, verified 2026-10-27
  75. [75] Phyn's help-centre article 'Installing a Phyn Plus with an Irrigation System', read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "In this setup, the irrigation line branches off before the Phyn Plus." · "Phyn will not monitor irrigation water usage" — Re-checked this against its sources, verified 2026-10-27
  76. [76] Phyn's help-centre home page, read in full on 2026-10-27 through tools/page-read.mjs. It lists the categories 'Phyn Plus (1st + 2nd Gen)', 'Setup/Connectivity', 'Phyn Smart Water Sensor' and 'Phyn Assistant'. — Re-checked this against its sources, verified 2026-10-27
  77. [77] The community Home Assistant integration's README on GitHub, read in full on 2026-10-27 through tools/page-read.mjs. Verbatim: "Shutoff valve control" · "Average water temperature, pressure, and flow (realtime not available)" · "provide existing Phyn username and password". — Re-checked this against its sources, verified 2026-10-27Someone's observation, checked 2026-10-27This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-27.
    page changed on 2026-11-02, after this reading
  78. [78] GitHub's latest-release record for the community Phyn integration, read on 2026-10-27 through tools/page-read.mjs. It names the release tag v2026.9.1, published 2026-09-20. — Re-checked this against its sources, verified 2026-10-27Someone's observation, checked 2026-10-27This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-27.
    page changed on 2026-11-02, after this reading
  79. [79] Home Assistant’s documentation repository on GitHub still has no source file at the address it uses for a built-in Phyn integration page (source/_integrations/phyn.markdown on the current branch), checked on 2026-10-27, so we could not find an official Home Assistant listing for Phyn. — Re-checked this against its sources, verified 2026-10-27
  80. [80] SmartThings Community thread 'PHYN Plus Integration', read in full on 2026-10-27 through tools/page-read.mjs. It still ends on December 12, 2019 with "Looks like they have the API closed." — Re-checked this against its sources, verified 2026-10-27Someone's observation, checked 2026-10-27This fact comes from an owner, a forum or a community project rather than from the manufacturer. Last checked 2026-10-27.

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.

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