Product Library / Water Protection & Plumbing

Discontinued

Ring Alarm Flood & Freeze Sensor (Z-Wave)

Compiled by SmartHomeWorkflow Research · Ring · Water Protection & Plumbing · ~$34.99 ($34.99 is the last price Ring's own store showed for this sensor, read 2026-09-26, when its page offered no way to add it to a cart. Ring no longer lists it: the product page answered 'page not found' on 2026-11-04 and again on 2026-11-06, and Ring sells the Flood & Freeze Sensor (Newest Model), a Ring Sensors device on Amazon Sidewalk, at $39.99 in its place. Treat $34.99 as a historical figure, not a price you can pay Ring today.)

⚠ Similar names, different products: Ring sells two flood sensors with almost the same name, and they are not interchangeable. This page covers the Alarm Flood & Freeze Sensor ($34.99), which is Z-Wave and REQUIRES a Ring Alarm or Alarm Pro base station. The Flood & Freeze Sensor (Newest Model) ($39.99) is a different device: it runs on Amazon Sidewalk and needs no base station at all. Check which one a listing is selling before you buy — the older one is useless without a base station you may not own.

Present function is not in doubt; the SUPPORT HORIZON is. Ring now answers the coexistence half in its own words: asked on the Ring Sensors page whether the new Sidewalk sensors work with a Ring Alarm or Alarm Pro base station, Ring answers 'Yes. Simply add the Ring Sensors devices to your Ring account and you can continue protecting your home how you want.' That replaces the journalist's characterisation this note used to rest on. What Ring still does NOT say is anything about duration — there is no support commitment for existing Z-Wave flood sensors after the transition to the Sidewalk line, which remains the highest-value open question for existing owners. Documented as able to coexist; not documented as supported for any period. You are buying a $34.99 sensor that is inert without a base station costing several hundred, silent on your phone without a subscription, and no longer sold by Ring. Without a plan, a leak that starts while you are out triggers a siren nobody hears and sends you nothing. The one feature that turns detection into prevention — Auto Close, which shuts a compatible Z-Wave valve automatically — is also subscription-gated and works only with Ring-approved valves. And the replacement may not carry that feature forward: Ring's successor is an Amazon Sidewalk sensor that explicitly does not use a base station, while Auto Close depends on a Z-Wave valve joined to that base station's network, and no source confirms or denies whether the new sensor can close a valve at all. A buyer replacing a dead sensor with the current one may quietly lose automatic shutoff.

Compatibility at a glance

Does it work with your home?

[28][31][48]
[28][31]
[27][31]
[16][47][65]
[18][41][66]

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: ZWAVE[11][15][31][52]

Before you buy

What do you need to make it work?

A hub or controller is required

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

Required for the device

Ring Alarm Pro Base Station

A Ring Alarm or Ring Alarm Pro base station is mandatory — the sensor is inert without one, and Ring states it in two places, including 'The Flood & Freeze Sensor requires the Ring Alarm Base Station to send notifications in case of a flooding or freezing event.' Z-Wave range to the base station is up to 250 ft, and range extenders are supported.[15][31][32][52][53]

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

Leak detected

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [20] [36] [55]

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?[20][36][55]

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

Controls
None documented by the vendor
Reported events
1 documented

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

Documented device functions, platform controls and automation availability
Device functionApple HomeInconclusive[28][31][48]Google HomeInconclusive[28][31]AlexaInconclusive[27][31]SmartThingsInconclusive[16][47][65]Home AssistantDoesn't work[18][41][66]
Leak detectedReported event
Event

Inconclusive

Event

Inconclusive

Event

Inconclusive

Event

Inconclusive

Event

Doesn't work

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

Neither Ring nor Apple documents native Apple Home support. Homebridge, a third-party community project, is reported to expose Ring alarm accessories including water sensors — an unofficial route that leans on a Ring connection Ring does not publish or support, and that can stop working without warning. Left as unanswered rather than a flat no, because no statement from Ring addresses it either way.[28][31][48]

Google Home

No statement from Ring or Google covering Ring ALARM SENSORS was found in either direction. Secondary sources describe Google Home working with Ring cameras and doorbells only, which is not the same claim and is not a basis for a negative on this device.[28][31]

Alexa

Notable given both are Amazon, and genuinely unresolved. Ring Alarm as a system integrates with Alexa, but multiple Ring Community threads report that this specific sensor does not appear in the Alexa app as a routine trigger — one user describes it as the only sensor that does not show up. No Ring or Amazon staff confirmation was found in either direction, so this is recorded as unknown rather than published as a negative on user reports alone. If accurate, it means a flood event cannot drive arbitrary third-party devices through Alexa.[27][31]

SmartThings

Not established, and the change is ours rather than Ring's. This sensor talks Z-Wave and SmartThings hubs are Z-Wave controllers, so Samsung's page listing Ring only under Camera and Doorbell tells you what Ring has put through Samsung's official partner program and nothing about whether a SmartThings hub could pair the sensor directly over the radio. Neither company has published an answer to that. What Ring does say is that the sensor needs a Ring Alarm base station to report a flood or a freeze at all, so if running it on SmartThings alone is why you are buying, ask Ring before you do.[16][47][65]

Home Assistant

Home Assistant's official Ring integration lists the Ring devices it supports — doorbells, stick-up cameras, chimes and intercoms — and no Ring Alarm sensor is among them. Two community projects claim to cover this sensor, and both work through a Ring connection Ring does not publish; this rating covers the official integration only and says nothing about either of them.[18][41][66]

Platform documentation:

ring.com · checked 2026-10-07

ring.com · checked 2026-09-26

partners.smartthings.com · checked 2026-11-06

home-assistant.io · checked 2026-09-26

api.github.com · checked 2026-11-06

Device documentation: [20] [36] [55]

Some functions may need a paid plan. Plan requirements are shown below.

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 AlexaInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[27][31]Notable given both are Amazon, and genuinely unresolved. Ring Alarm as a system integrates with Alexa, but multiple Ring Community threads report that this specific sensor does not appear in the Alexa app as a routine trigger — one user describes it as the only sensor that does not show up. No Ring or Amazon staff confirmation was found in either direction, so this is recorded as unknown rather than published as a negative on user reports alone. If accurate, it means a flood event cannot drive arbitrary third-party devices through Alexa.
Google HomeInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[28][31]No statement from Ring or Google covering Ring ALARM SENSORS was found in either direction. Secondary sources describe Google Home working with Ring cameras and doorbells only, which is not the same claim and is not a basis for a negative on this device.
Apple HomeInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[28][31][48]Neither Ring nor Apple documents native Apple Home support. Homebridge, a third-party community project, is reported to expose Ring alarm accessories including water sensors — an unofficial route that leans on a Ring connection Ring does not publish or support, and that can stop working without warning. Left as unanswered rather than a flat no, because no statement from Ring addresses it either way.
SmartThingsInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[16][47][65]Not established, and the change is ours rather than Ring's. This sensor talks Z-Wave and SmartThings hubs are Z-Wave controllers, so Samsung's page listing Ring only under Camera and Doorbell tells you what Ring has put through Samsung's official partner program and nothing about whether a SmartThings hub could pair the sensor directly over the radio. Neither company has published an answer to that. What Ring does say is that the sensor needs a Ring Alarm base station to report a flood or a freeze at all, so if running it on SmartThings alone is why you are buying, ask Ring before you do.
Home AssistantDoesn't workVerified: does not work with this ecosystem[18][41][66]Home Assistant's official Ring integration lists the Ring devices it supports — doorbells, stick-up cameras, chimes and intercoms — and no Ring Alarm sensor is among them. Two community projects claim to cover this sensor, and both work through a Ring connection Ring does not publish; this rating covers the official integration only and says nothing about either of them.

? 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[3][14][29][30][31][33][34][36][37][44][45][52][55][56][57][58][59][60]

⚠ Works without a subscription: No — core features are paywalled.

Vendor account required: Yes — you must create a vendor account to use it.[22][42][61]

Recorded as required rather than optional, because for a leak sensor being told is the product. Ring's own words for people without a subscription are that the siren sounds but "you and your Shared Users will not receive digital notifications" — so a leak that starts while you are at work makes a noise in an empty house and nothing on your phone. Ring's product page says alerts are "subscription required, sold separately". Plan names and prices at time of research, 2026-09-26, after Ring renamed its Ring Home plans to Ring Protect plans in 2026 (older reviews may still say "Ring Home"): Ring Solo $4.99 a month or $49.99 a year, Ring Multi $9.99 a month or $99.99 a year, Ring Pro $19.99 a month or $199.99 a year including 24/7 professional monitoring, plus a $99-a-month Virtual Security Guard add-on. Ring Solo is the cheapest plan that covers a Ring Alarm: Ring's help page for Ring Solo lists arming and disarming the Alarm from the app, Alarm event history, and Flood and Freeze Calls, where Ring calls up to three people you choose when this sensor is triggered. That page does not name the plain phone alert for a leak or a freeze, and Ring's other pages say only that alerts need a "compatible Ring subscription"; Ring's plans page names no flood, freeze or water alert at all. Solo covers one Ring device, so a home that also has Ring cameras or a doorbell needs Ring Multi to cover everything at the address.

Maintenance and offline use[7]

Where Ring's own pages disagree

Subscription

On whether it needs a subscription, this page shows Ring Solo is the cheapest plan that covers a Ring Alarm. Ring's plans page says Ring Solo covers one doorbell or camera, while its Ring Solo help page lists Flood and Freeze Calls for this sensor, so this page goes by the help page and names Ring Solo as the cheapest plan that covers a Ring Alarm.

Who it's for

Existing Ring Alarm owners who already pay for a plan and can still find stock — for them this was a cheap, sensible add-on, particularly paired with a compatible Z-Wave valve for genuine automatic shutoff. It is a poor choice for anyone buying into Ring solely for leak detection, anyone unwilling to subscribe, anyone who wants local control or Home Assistant integration, and, given that Ring no longer sells it, anyone starting a new installation today. Those buyers should look at Ring's Sidewalk successor with the open questions below in hand, or at another ecosystem entirely.

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 →

67 numbered sources· read them in the source's own words
  1. [1] ring.com/products/alarm-flood-and-freeze-sensor re-checked directly 2026-07-19: no add-to-cart control, showing 'Enter your email below to be notified when this product is available' and 'Thanks for signing up. You will be notified when the product launches.' shop.ring.com returned no availability string or cart control either way and was inconclusive. The 'discontinued' store string quoted by piunikaweb (2025-12-09) did not appear when we read the page ourselves — recorded as the difference between an item we confirmed you cannot buy and one somebody else says is discontinued. — Read on the maker's own site, verified 2026-07-19
    Backs: Price, Market availability
  2. [2] Two Ring sources. Support article ndn0k: 'The Flood & Freeze Sensor requires the Ring Alarm Base Station to send notifications in case of a flooding or freezing event.' Product page: 'Requires Ring Alarm or Ring Alarm Pro Security Kit'. — Read on the maker's own site, verified 2026-07-19
  3. [3] Ring FAQ 95zzm carries the footnote 'Compatible Ring subscription required'; the product page says alerts are 'subscription required, sold separately'; support article 47t1b gives the unsubscribed behaviour — the siren sounds, but 'you and your Shared Users will not receive digital notifications' and arming is 'from the Ring Keypad only'. ring.com/plans gives Solo $4.99/$49.99, Multi $9.99/$99.99, Pro $19.99/$199.99 and Virtual Security Guard $99/mo. ring.com/support/plans/standard states 'Ring Home plans were renamed Ring Protect plans on January 14, 2026'. UNRESOLVED ACROSS FOUR RING PAGES (lw54x, 47t1b, 95zzm, ndn0k): which tier unlocks basic flood and freeze alerts — Ring only ever says 'compatible'. A secondary blog claiming a February 2026 price increase was checked against ring.com/plans and rejected. — Read on the maker's own site, verified 2026-07-19
    Backs: Subscription
  4. [4] Ring support article 3854k names the Zooz Titan Water Valve Actuator as 'the first Z-Wave water valve to be added to the list of Works With Ring devices' and describes Auto Close, '(Ring subscription required)', closing the valve automatically on a flood or freeze event detected by the Flood & Freeze Sensor. Ring article ap9ay lists Works With Ring manufacturers (Dome, EcoLink, First Alert, GE, Kidde, Leviton, Zooz) including water valve actuators, and states 'All Works with Ring products require a Ring Alarm Base Station.' Zooz's own support knowledge base adds the sharper limit — Auto Close 'will only work with Ring Flood & Freeze Sensors, which are the only leak sensors currently fully integrated in the Ring Alarm system' — and names 'Ring Protect Basic' as the required tier; that page refused us outright when read directly, and the text came from a search-result excerpt, so it is flagged as unconfirmed at source despite carrying two load-bearing facts. — Read on the maker's own site, verified 2026-07-19
  5. [5] Ring announced a Sidewalk-based Flood & Freeze Sensor (B0DS6HSS9Z) at CES January 2026, shipping March 2026, 2×AA included rated up to 6 years, no base station required, about $39.99 US (press coverage; a Canadian Ring page verified $29.99 CAD reduced from $39.99 with a live add-to-cart). CRITICAL UNRESOLVED QUESTION: no source, Ring or Zooz, confirms or denies whether the Sidewalk sensor supports Auto Close. Architecturally it is doubtful — a Sidewalk sensor has no documented route to a Z-Wave valve joined to a base station the buyer may not own — but that is reasoning, not evidence, and it is recorded as an open risk rather than a finding. ALSO NOTE: Ring's 'no sign up fees or subscriptions to connect' line on the new sensor refers to SIDEWALK CONNECTIVITY, not to alerts, and must not be read as alerts being free; whether alerts are gated on the successor is unknown. Ring's own monitoring-eligibility list for the new line omits the Flood & Freeze Sensor, which is suggestive but not an affirmative statement. — Read on the maker's own site, verified 2026-07-19
    Backs: Market availability
  6. [6] Ring support article b4lyi lists Amazon Sidewalk bridges (Echo 4th Gen, Echo Show 10/15/21, Echo Hub, Ring Bridge 2nd Gen, Ring Alarm Pro, several Floodlight/Spotlight/Outdoor cameras and the Wired Doorbell Pro) and states a bridge is not strictly mandatory — 'If your neighborhood already has good Amazon Sidewalk coverage, you only need the compatible device', while 'Having a bridge ensures a stronger connection.' So the buyer needs either a Sidewalk gateway they own or sufficient neighbour-provided coverage. RING PUBLISHES THREE DIFFERENT COVERAGE FIGURES ON THREE OF ITS OWN PAGES: approximately 95% (ring.com/ring-sensors), approximately 70% (ring.com/ca) and 90% (article b4lyi). The discrepancy is recorded rather than resolved into one number. — Read on the maker's own site, verified 2026-07-19
    Backs: Market availability
  7. [7] Ring product page (Z-Wave, up to 250 ft to the base station, 3V lithium up to 3 years, 2.95in × 1.06in, 32–120 °F) and support article ndn0k (CR123A; triggers below 40 °F, not adjustable in the app) — Read on the maker's own site, verified 2026-07-19
    Backs: Batteries, Works without the internet
  8. [8] Ring support article ndn0k — with an eligible subscription and enrolment in Flood & Freeze Monitoring, you 'can now optionally receive an automatic call from the monitoring center'; article o80oz describes the primary contact being called, then the secondary. Coverage is all 50 US states excluding territories, and Canada excluding Quebec. Worth stating plainly because buyers likely assume parity with intrusion monitoring: intrusion escalates to emergency DISPATCH, while a water event produces an automated phone call — no source describes responder dispatch for a water event. — Read on the maker's own site, verified 2026-07-19
  9. [9] Deliberate and uniform: no statement from Ring, and none from any of the platforms, was located establishing support or non-support for this specific sensor in any of the five ecosystems. Alexa rests on Ring Community user reports with no staff confirmation; Google on secondary sources describing cameras rather than alarm sensors; Apple on the absence of documentation plus an unofficial Homebridge path; SmartThings on community forum posts; Home Assistant on the official integration covering cameras plus two unverified community projects. Publishing any of these as 'none' would be inferring a negative from absence. — Read what the other company publishes, verified 2026-07-19
  10. [10] 4SF1S8-0EN0 appears in a Home Depot listing title; the page refused us outright when read directly, and the model number is not confirmed on any Ring page. Recorded because it is the only model identifier found, but it is the least-sourced field on this record. — Read a retailer or review listing, verified 2026-07-19
    Backs: Product identity
  11. [11] Secondary analysis indicating no Ring device is Matter-certified as of 2026 and that Ring Alarm Pro cannot act as a Matter controller. This was NOT checked against the csa-iot.org certification database directly, so it is recorded at medium confidence as secondary rather than as a registry-verified absence., verified 2026-07-19
    Backs: Protocols
  12. [12] No evidence of any loss of function for existing units, and Ring's Z-Wave technical documentation (support articles 3aeym, mb0pe, x9gba) remains published, verified 2026-07-19
    Backs: Service status
  13. [13] Re-verification pass, 2026-08-20. Primary sources re-read and the record checked against them: ring.com/products/alarm-flood-and-freeze-sensor (full tech-spec block — "3V Lithium Battery (included), non-rechargeable", "Max 3 Years", "Z-Wave (up to 250-foot range to Base Station)", "32°F to 120°F (0°C to 49°C)", "Diameter: 2.95 inches (7.5 cm.) Height: 1.06 inches (2.7 cm.)", "Requires Ring Alarm or Ring Alarm Pro Security Kit", price "$34.99", "Notify Me" in place of Add to Cart); ring.com/support/articles/cwxk5 ("The Flood & Freeze Sensor triggers an alert if the temperature drops below 40º F (4.4º C)." and the alert clearing "when the temperature at the position of the sensor increases to above 45º F (7.2º C)"); ring.com/products/flood-and-freeze-sensor (the Sidewalk successor, "Flood & Freeze Sensor (Newest Model)", "$39.99"); home-assistant.io/integrations/ring and partners.smartthings.com/partners/ring. — Read on the maker's own site, verified 2026-08-20
    Backs: Research status
  14. [14] ring.com/products/alarm-flood-and-freeze-sensor, re-read twice 2026-08-18 — displayed price '$34.99'; the only call-to-action found on a targeted re-read is 'Notify Me' (the out-of-stock email signup); the page publishes no machine-readable availability value; 'Requires Ring Alarm or Ring Alarm Pro Security Kit.'; 'Sends mobile and email notifications (subscription required, sold separately).'; 'Connectivity: Z-Wave (up to 250-foot range to Base Station)'. Plan pricing from ring.com/plans the same day: 'Ring Solo' '$4.99/mo or $49.99/yr'. — Read on the maker's own site, verified 2026-08-18
    Backs: Price, Market availability, Subscription
  15. [15] ring.com/products/alarm-flood-and-freeze-sensor, re-read 2026-08-20 — product name "Alarm Flood & Freeze Sensor", price "$34.99", "Requires Ring Alarm or Ring Alarm Pro Security Kit", "Notify Me" in place of an Add to Cart control; technical specifications "3V Lithium Battery (included), non-rechargeable", battery life "Max 3 Years", connectivity "Z-Wave (up to 250-foot range to Base Station)", operating temperature "32°F to 120°F (0°C to 49°C)", "Diameter: 2.95 inches (7.5 cm.) Height: 1.06 inches (2.7 cm.)", "One-year limited warranty". Threshold re-read the same day at ring.com/support/articles/cwxk5: "The Flood & Freeze Sensor triggers an alert if the temperature drops below 40º F (4.4º C)." The successor device was read at ring.com/products/flood-and-freeze-sensor: "Flood & Freeze Sensor (Newest Model)", "$39.99", "Ring Sensors is a line of smart security sensors and devices that work without WiFi range limitations or base stations", connecting "automatically to Amazon Sidewalk". — Read on the maker's own site, verified 2026-08-20
    Backs: Product identity, Required hub or bridge, Protocols, Batteries, Market availability
  16. [16] The two platforms' own integration documents, both read 2026-08-20. (1) partners.smartthings.com/partners/ring — Samsung's own Ring partner page lists the categories "Camera, Doorbell" and no others; no alarm, base station or sensor line appears. (2) home-assistant.io/integrations/ring — the supported-device list is enumerated by model and reads "Doorbells: Doorbell, Doorbell 2, Doorbell 3, Doorbell 3 Plus, Doorbell 4, Doorbell Pro, Doorbell Pro 2, Doorbell Elite, Doorbell Wired, Battery Doorbell, Doorbell (2nd Gen), Peephole Cam · Stickup cams: Floodlight Cam, Floodlight Cam Pro, Floodlight Cam Plus, Indoor Cam, Indoor Cam (2nd Gen), Spotlight Cam Battery, Spotlight Cam Wired, Spotlight Cam Plus, Spotlight Cam Pro, Stick Up Cam, Stick Up Battery, Stick Up Wired, Stick Up Cam (3rd Gen) · Chimes: Chime, Chime Pro · Intercoms: Intercom". No Ring Alarm sensor of any kind appears, and the platform list ("Binary sensor, Button, Camera, Event, Sensor, Siren, Switch, Light, Number") contains nothing for an alarm panel. — Read what the other company publishes, verified 2026-09-16
    Backs: SmartThings compatibility
  17. [17] Samsung, Works with SmartThings partner page for Ring — re-read 2026-09-18: the Categories field still reads 'Camera, Doorbell' and the strings Alarm, Sensor, Flood, Base Station, Keypad and Z-Wave occur zero times in the document., verified 2026-09-18
  18. [18] home-assistant.io, Ring integration documentation — Read what the other company publishes, verified 2026-08-20
    Backs: Home Assistant compatibility
  19. [19] ring.com/products/flood-and-freeze-sensor, read 2026-08-20 — Ring's own FAQ answer to whether the new Sidewalk sensors work with an existing Ring Alarm or Alarm Pro base station: "Yes. Simply add the Ring Sensors devices to your Ring account and you can continue protecting your home how you want." Read in full for any statement of a support period, end date, or migration deadline affecting existing Z-Wave sensors: none appears. — Read on the maker's own site, verified 2026-08-20
    Backs: Service status
  20. [20] Ring's own support and product pages, as already cited on this record and re-read 2026-08-20 during a re-verification round: ring.com/products/alarm-flood-and-freeze-sensor ("Requires Ring Alarm or Ring Alarm Pro Security Kit"; Z-Wave to the base station) and Ring support article 3854k, which names the Zooz Titan Water Valve Actuator as "the first Z-Wave water valve to be added to the list of Works With Ring devices" and describes Auto Close closing that valve automatically on a flood or freeze event detected by the Flood & Freeze Sensor. — Read on the maker's own site, verified 2026-08-20
    Backs: Capabilities
  21. [21] No source was read for this entry. It records an edit so the edit is not silent, per the freshness guard's own instruction. — Re-checked this against its sources, verified 2026-08-20
  22. [22] Ring support, 'Setting up and installing your Ring Alarm Base Station', read 2026-08-21 — 'If this is your first Ring product, you will be asked to set up an account.' The same article adds 'you can have multiple locations (up to 10) on one Ring account', so the account is the container the products live in. — Read on the maker's own site, verified 2026-08-21
    Backs: Vendor account required
  23. [23] 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
  24. [24] https://ring.com/products/alarm-flood-and-freeze-sensor (read 2026-09-09), Power and Connectivity: 'Power: 3V Lithium Battery (included), non-rechargeable', 'Battery Life: Max 3 Years', 'Connectivity: Z-Wave (up to 250-foot range to Base Station)'. — Read on the maker's own site, verified 2026-09-09
    Backs: Power source
  25. [25] https://ring.com/products/alarm-flood-and-freeze-sensor (read 2026-09-09) links no app store and names no platform for the Ring app. The phone platforms stay blank: checked, and not published. — Read on the maker's own site, verified 2026-09-09
  26. [26] the record's own customer-facing prose fields as they stood before 2026-09-10 (no new external read), verified 2026-09-10
  27. [27] Ring's own surfaces for this sensor, read 2026-09-10, each answering normally. (1) The product page, ring.com/products/alarm-flood-and-freeze-sensor: "Alexa", "Google", "Apple", "HomeKit" and "Siri" each occur zero times, and the page has no works-with list. (2) Ring's help hub for the sensor (ring.com/support/products/alarm/flood-and-freeze): "Get alerts when water or low temperatures are detected" and "Requires Ring Alarm or Ring Alarm Pro Security Kit", with no platform named. (3) Ring's general Alexa routines article (ring.com/support/articles/g6hqn): routines run "when it is connected to a Ring device (such as a doorbell or security camera)", and its worked examples are doorbells, cameras and the Mailbox Sensor. That is a list of examples, not a list of supported devices, and it does not mention this sensor. THE CONTROL: Ring states Alexa support where it exists. Its Contact Sensor article (ring.com/support/articles/ju1zx) reads "Alexa Routines : Use your Contact Sensors to trigger Alexa Routines." The flood sensor's own pages say nothing comparable. — Read on the maker's own site, verified 2026-09-10
    Backs: Amazon Alexa compatibility
  28. [28] Ring's own product page for the Alarm Flood & Freeze Sensor, ring.com/products/alarm-flood-and-freeze-sensor, read 2026-09-15 the way a browser draws it, answering normally, with 5,514 characters of visible text. The page has no works-with list and no compatibility section. The words 'Google', 'Apple', 'HomeKit' and 'Siri' occur ZERO times in Ring's own copy; 'Alexa' occurs once, inside a customer review ('You can't create any routines in the Alexa app using these sensors'), not in Ring's own words. What Ring does state about this sensor, verbatim: 'Place Sensors near water sources at home to stay ahead of potential leaks and frozen pipes. get notifications when water is detected or when the temperature drops below 40°F.'; 'Requires Ring Alarm or Ring Alarm Pro Security Kit.'; 'Sends mobile and email notifications (subscription required, sold separately).'; and, under Connectivity, 'Z-Wave (up to 250-foot range to Base Station)'. — Read on the maker's own site, verified 2026-09-15
    Backs: Apple Home compatibility, Google Home compatibility
  29. [29] Ring's own plans page, re-read in full 2026-09-22. Headed 'Ring Protect Plans'. Verbatim: 'Ring Solo $4.99/mo or $49.99/yr + applicable tax — Video recording, smart alerts, and more, for one device'; 'Ring Multi $9.99/mo or $99.99/yr + applicable tax — Video recording, smart alerts, and more for all devices at one location'; 'Ring Pro $19.99/mo or $199.99/yr + applicable tax — Get intelligent assistant features... plus emergency response when your system is triggered'; 'Virtual Security Guard $99.00/mo + applicable tax'. Footer condition: 'Plans auto-renew until canceled. One device or location covered per plan.' — Read on the maker's own site, verified 2026-09-22
    Backs: Subscription
  30. [30] Ring's own help page 'Ring subscription plan changes in 2026', ring.com/explore-ring-home, read in full 2026-09-24. Verbatim: 'Ring Home plans were renamed Ring Protect plans in 2026. Your subscription automatically transitions to your new plan, and you keep the same features. There is no additional charge for this change.' The page's own table maps the old names to the new: 'Home Basic' → 'Ring Solo', 'Home Standard' (no professional add-ons) → 'Ring Multi', 'Home Standard with 24/7 Professional Monitoring' → 'Ring Pro'. The page prints no day for the rename. — Read the original source directly, verified 2026-09-24
    Backs: Subscription
  31. [31] Ring's product page for the Alarm Flood & Freeze Sensor, read in full 2026-09-26. Heading "Alarm Flood & Freeze Sensor"; price "$34.99" with no 'Was' price, and no "Add to Cart" control anywhere in the product's own buy area (the only cart buttons on the page belong to other products under "You might also like"). "Requires Ring Alarm or Ring Alarm Pro Security Kit."; "Sends mobile and email notifications (subscription required, sold separately)."; "get notifications when water is detected or when the temperature drops below 40°F." Tech specs: "Power 3V Lithium Battery (included), non-rechargeable", "Battery Life Max 3 Years", "Connectivity Z-Wave (up to 250-foot range to Base Station)", "Operating Conditions 32°F to 120°F (0°C to 49°C)". The words Alexa, Google, Apple, HomeKit and SmartThings do not appear on the page, and it now shows no customer reviews. — Read on the maker's own site, verified 2026-09-26
    Backs: Product identity, Price, Market availability, Protocols, Required hub or bridge, Batteries, Power source, Subscription, Amazon Alexa compatibility, Google Home compatibility, Apple Home compatibility, Research status
  32. [32] Ring support, 'How Ring Alarm Flood and Freeze Sensor Works', read in full 2026-09-26. "Flood & Freeze Sensors are placed on the floor in any place that might experience sudden flooding or a temperature drop." "The Flood & Freeze Sensor is powered using a 3V lithium battery CR123A." "Can I use the Flood & Freeze Sensor without a Ring Alarm? No. The Flood & Freeze Sensor requires the Ring Alarm Base Station to send notifications in case of a flooding or freezing event." "the low temperature set point is at 40-degrees Fahrenheit and cannot be changed from the app at this time." "If you have an eligible Ring subscription and are enrolled in Flood & Freeze Monitoring , you can now optionally receive an automatic call from the monitoring center". — Read on the maker's own site, verified 2026-09-26
    Backs: Installation, Required hub or bridge, Batteries
  33. [33] Ring support, 'Flood and Freeze Sensor', read in full 2026-09-26. "Get alerts when water or low temperatures are detected. ¹" with footnote "¹ Compatible Ring subscription required."; "Requires Ring Alarm or Ring Alarm Pro Security Kit. Sends mobile and email notifications." Tech specs: "Power 3V Lithium Battery (included), non-rechargeable", "Battery Life Max 3 Years". — Read on the maker's own site, verified 2026-09-26
    Backs: Subscription, Batteries
  34. [34] Ring support, 'Which Ring Alarm Plan Is Right for You?', read in full 2026-09-26: without a subscription "You can arm or disarm your Alarm from the Ring Keypad only. If your Ring Alarm is triggered, its siren will sound, but you and your Shared Users will not receive digital notifications and emergency response will not be requested." — Read on the maker's own site, verified 2026-09-26
    Backs: Subscription
  35. [35] Ring support, 'Troubleshooting Ring Alarm Flood & Freeze Sensor', read in full 2026-09-26: "The Flood & Freeze Sensor triggers an alert if the temperature drops below 40º F (4.4º C). It will not clear the message until the temperature at the position of the sensor increases to above 45º F (7.2º C)." "Water has to be touching both contacts on the bottom of the device for it to trigger." — Read on the maker's own site, verified 2026-09-26
  36. [36] Ring support, 'Z-Wave Water Shut-Off Valves (Works With Ring)', read in full 2026-09-26. "When a water leak, freezing temperature or both are detected at your location by your Ring Flood & Freeze Sensor, you can have Auto Close ( Ring subscription required ) close the valve for you"; "the Zooz Titan Water Valve Actuator is the first Z-Wave water valve to be added to the list of Works With Ring devices." — Read on the maker's own site, verified 2026-09-26
    Backs: Capabilities, Subscription
  37. [37] Ring's plans page, read in full 2026-09-26. "Ring Solo $4.99/mo or $49.99/yr + applicable tax", "Ring Multi $9.99/mo or $99.99/yr + applicable tax", "Ring Pro $19.99/mo or $199.99/yr + applicable tax", "Virtual Security Guard $99.00/mo + applicable tax". The page names no flood, freeze or water alert. Its comparison table's coverage row reads "One Home Doorbell or Camera" for Ring Solo. — Read on the maker's own site, verified 2026-09-26
    Backs: Subscription
  38. [38] Ring's Ring Sensors page, read in full 2026-09-26. "Amazon Sidewalk is a community network covering approximately 95% of the country"; "Ring Sensors are a line of smart security sensors and devices that work without Wi-Fi range limits or base stations"; "Professional monitoring is available for the Window & Door Sensor, Outside Door Sensor, Panic Button, Smoke & CO Listener, Glass Break Sensor, and Motion Detector." — Read on the maker's own site, verified 2026-09-26
    Backs: Market availability
  39. [39] Ring's product page for the Sidewalk successor, read in full 2026-09-26. Heading "Flood & Freeze Sensor (Newest Model) Ring Sensors", "Now $24.99 Was $39.99" with "Add to Cart"; "Power 2 AA Alkaline Batteries (included)", "Approximate Battery Life Up to 6 years", "Connectivity Amazon Sidewalk". FAQ: "Can I use Ring Sensors if I have a Ring Alarm or Alarm Pro base station? Yes. Simply add the Ring Sensors devices to your Ring account and you can continue protecting your home how you want." No support period or end date for Z-Wave sensors appears on the page. — Read on the maker's own site, verified 2026-09-26
    Backs: Service status
  40. [40] Samsung's Works with SmartThings partner page for Ring, read in full 2026-09-26: "Categories Camera Doorbell", and no alarm or sensor category. — Read on the maker's own site, verified 2026-09-26
  41. [41] Home Assistant's Ring integration page (documentation 2026.9.3), read in full 2026-09-26. Supported devices: doorbells, stickup cams, chimes and the intercom; functionality "Binary sensor, Button, Camera, Event, Sensor, Siren, Switch, Light, Number". No Ring Alarm sensor appears. — Read on the maker's own site, verified 2026-09-26
    Backs: Home Assistant compatibility
  42. [42] Ring support, 'Setting up and installing your Ring Alarm Base Station', read in full 2026-09-26: "If this is your first Ring product, you will be asked to set up an account." — Read on the maker's own site, verified 2026-09-26
    Backs: Vendor account required
  43. [43] Ring support, 'Information on Ring Devices Software Security Updates', read in full 2026-09-26. The Accessories table lists "Flood & Freeze Sensor 31 December 2030" beside "Window & Door Sensor", "Motion Detector" and "Smoke & CO Listener"; the Ring Alarm table lists "Alarm Motion Detector" and "Alarm Window and Door Contact Sensor" and no flood sensor. — Read on the maker's own site, verified 2026-09-26
  44. [44] Ring support, 'Ring Solo' (the help-centre page for the Ring Solo plan), read in full 2026-09-26. "Enhanced security features for one Ring device. Get video recording, smart alerts, remote arming and disarming, and more." Under "Ring Solo Features", section "Device Modes and Account": "Device Modes — Digitally arm and disarm your Alarm and customize when your cameras record in the Ring app." Section "Alarm": "Alarm Cellular Backup — If your home loses internet connection, Alarm Cellular Backup keeps your Ring Alarm system connected."; "Alarm Event History — Scroll back to see past notifications and updates from your Ring Alarm or an eligible Smoke/CO system with up to 60 days of Event History."; "Flood and Freeze Calls — Rapid Response will call up to three designated contacts when your Alarm Flood and Freeze Sensor is triggered. Requires Flood and Freeze Sensor, sold separately." — Read the original source directly, verified 2026-09-26
    Backs: Subscription
  45. [45] Ring support, 'Understanding Ring Protect subscriptions', read in full 2026-09-26. "Ring Solo: For a single Ring device, unlock video recording, smart alerts, and more." "Ring Multi: For all Ring devices at a single location, unlock video recording, smart alerts, and more." Under the trial section, "Ring Alarm and Ring Alarm Pro": "you can access features like Professional Monitoring and arming or disarming your Ring Alarm from your phone anywhere." — Read the original source directly, verified 2026-09-26
    Backs: Subscription
  46. [46] Ring's plans page and its Ring Solo help page, both read on 26 September 2026 and quoted word for word., verified 2026-09-26
  47. [47] Samsung's Works with SmartThings partner page for Ring, read in full on 2026-10-07, rendered because the plain read shows only "No products available in your region". Categories: "Camera Doorbell". The United States product list names Ring cameras and doorbells by model number (for example "Floodlight Cam Model Number 8SF1P7 Category Camera" and "Video Doorbell 3 Model Number 5AT3S9 Category Doorbell") and no alarm sensor, flood sensor or base station. — Read the original source directly, verified 2026-10-07
    Backs: SmartThings compatibility
  48. [48] Ring's product page for the Alarm Flood & Freeze Sensor, read in full on 2026-10-07. "Requires Ring Alarm or Ring Alarm Pro Security Kit." · "Sends mobile and email notifications (subscription required, sold separately)." · "Connectivity Z-Wave (up to 250-foot range to Base Station)". The words Apple, HomeKit, Alexa, Google and SmartThings do not appear on the page. — Re-checked this against its sources, verified 2026-10-07
    Backs: Apple Home compatibility
  49. [49] Ring's US product page for the Alarm Flood & Freeze Sensor, read in full on 2026-10-12: 'Requires Ring Alarm or Ring Alarm Pro Security Kit.' — Read the original source directly, verified 2026-10-12
  50. [50] 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
  51. [51] Ring's product page address for the Alarm Flood & Freeze Sensor answered 'page not found' on 2026-11-06 ("Sorry, that page could not be found. It may have been removed or moved someplace else."), as it did on 2026-11-04. Ring's store no longer lists the sensor, and Ring sells the Flood & Freeze Sensor (Newest Model), a Ring Sensors device on Amazon Sidewalk, in its place., verified 2026-11-06
    Backs: Market availability, Price
  52. [52] Ring Help, 'Flood and Freeze Sensor', read in full on 2026-11-06. "Get alerts when water or low temperatures are detected." with footnote "Compatible Ring subscription required."; "Requires Ring Alarm or Ring Alarm Pro Security Kit. Sends mobile and email notifications." Tech specs: "Power 3V Lithium Battery (included), non-rechargeable", "Battery Life Max 3 Years", "Connectivity Z-Wave (up to 250-foot range to Base Station)". Related article: 'Ring Alarm Flood and Freeze Sensor Z-Wave Technical Manual'. — Read on the maker's own site, verified 2026-11-06
    Backs: Product identity, Protocols, Power source, Batteries, Required hub or bridge, Subscription
  53. [53] Ring Help, 'How Ring Alarm Flood and Freeze Sensor Works', read in full on 2026-11-06. "Flood & Freeze Sensors are placed on the floor in any place that might experience sudden flooding or a temperature drop." · "The Flood & Freeze Sensor is powered using a 3V lithium battery CR123A." · "Can I use the Flood & Freeze Sensor without a Ring Alarm? No. The Flood & Freeze Sensor requires the Ring Alarm Base Station to send notifications" · "the low temperature set point is at 40-degrees Fahrenheit and cannot be changed from the app at this time." — Read on the maker's own site, verified 2026-11-06
    Backs: Installation, Required hub or bridge, Batteries, Research status
  54. [54] Ring Help troubleshooting article for the Flood & Freeze Sensor, read in full on 2026-11-06. "The Flood & Freeze Sensor triggers an alert if the temperature drops below 40º F (4.4º C)." · "Water has to be touching both contacts on the bottom of the device for it to trigger." — Read on the maker's own site, verified 2026-11-06
  55. [55] Ring Help, 'Z-Wave Water Shut-Off Valves (Works With Ring)', read in full on 2026-11-06. "When a water leak, freezing temperature or both are detected at your location by your Ring Flood & Freeze Sensor, you can have Auto Close" · "the Zooz Titan Water Valve Actuator is the first Z-Wave water valve to be added to the list of Works With Ring devices." — Read on the maker's own site, verified 2026-11-06
    Backs: Capabilities, Subscription
  56. [56] Ring Help, 'Which Ring Alarm Plan Is Right for You?', read in full on 2026-11-06. Without a subscription: "You can arm or disarm your Alarm from the Ring Keypad only. If your Ring Alarm is triggered, its siren will sound, but you and your Shared Users will not receive digital notifications" — Read on the maker's own site, verified 2026-11-06
    Backs: Subscription
  57. [57] Ring's plans page, read in full on 2026-11-06. "Ring Solo $4.99/mo or $49.99/yr + applicable tax", "Ring Multi $9.99/mo or $99.99/yr + applicable tax", "Ring Pro $19.99/mo or $199.99/yr + applicable tax", "Virtual Security Guard $99.00/mo + applicable tax"; Ring Solo's coverage row: "One Home Doorbell or Camera". — Read on the maker's own site, verified 2026-11-06
    Backs: Subscription
  58. [58] Ring's 'explore Ring Home' page, read in full on 2026-11-06; it still names "Ring Protect". — Read on the maker's own site, verified 2026-11-06
    Backs: Subscription
  59. [59] Ring Help, 'Understanding Ring subscriptions', read in full on 2026-11-06. "Ring Solo: For a single Ring device, unlock video recording, smart alerts, and more." · "Ring Multi: For all Ring devices at a single location, unlock video recording, smart alerts, and more." · under "Ring Alarm and Ring Alarm Pro": "you can access features like Professional Monitoring and arming or disarming your Ring Alarm from your phone anywhere." — Read on the maker's own site, verified 2026-11-06
    Backs: Subscription
  60. [60] Ring Help, Ring Solo plan page, read in full on 2026-11-06. "Enhanced security features for one Ring device. Get video recording, smart alerts, remote arming and disarming, and more." Under 'Alarm': "Flood and Freeze Calls" — "Rapid Response will call up to three designated contacts when your Alarm Flood and Freeze Sensor is triggered. Requires Flood and Freeze Sensor, sold separately." — Read on the maker's own site, verified 2026-11-06
    Backs: Subscription
  61. [61] Ring Help, base station setup article, read in full on 2026-11-06: "If this is your first Ring product, you will be asked to set up an account." — Read on the maker's own site, verified 2026-11-06
    Backs: Vendor account required
  62. [62] Ring Help, 'Information on Ring Devices Software Security Updates', read in full on 2026-11-06. The Accessories table still lists "Flood & Freeze Sensor 31 December 2030" among the Sidewalk Ring Sensors names; the Ring Alarm table lists "Alarm Motion Detector" and "Alarm Window and Door Contact Sensor" and no flood sensor. — Read on the maker's own site, verified 2026-11-06
  63. [63] Ring's Ring Sensors page, read in full on 2026-11-06. "Ring Sensors are a line of smart security sensors and devices that work without Wi-Fi range limits or base stations" · "Amazon Sidewalk is a community network covering approximately 95% of the country". — Read on the maker's own site, verified 2026-11-06
  64. [64] Ring's product page for the Sidewalk successor, read in full on 2026-11-06. "Flood & Freeze Sensor (Newest Model)" at "$39.99" with "Add to Cart"; "Power 2 AA Alkaline Batteries (included)", "Approximate Battery Life Up to 6 years", "Connectivity Amazon Sidewalk". FAQ: "Can I use Ring Sensors if I have a Ring Alarm or Alarm Pro base station? Yes. Simply add the Ring Sensors devices to your Ring account and you can continue protecting your home how you want." — Read on the maker's own site, verified 2026-11-06
    Backs: Service status
  65. [65] Samsung's Works with SmartThings partner page for Ring, read plain and rendered on 2026-11-06. Plain read: "Camera Doorbell". Rendered read (readHash 3baedd155298): every listed row is a camera or doorbell, such as "Floodlight Cam Model Number 8SF1P7 Category Camera"; no alarm sensor is listed., verified 2026-11-06
    Backs: SmartThings compatibility
  66. [66] Home Assistant's Ring integration documentation source, read in full on 2026-11-06 from Home Assistant's documentation repository on GitHub. "allows you to control your [Ring.com](https://ring.com/) doorbell, stick up cam, chime, and intercom devices in Home Assistant." The file names no Ring Alarm device., verified 2026-11-06
    Backs: Home Assistant compatibility
  67. [67] Record-keeping entry: a re-source hunt on 2026-11-06 for the three platform cells that rested on Ring's vanished product page, run with tools/re-source.mjs over ring.com's sitemap and site search., verified 2026-11-06

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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