Ring Alarm Flood & Freeze Sensor (Z-Wave)

Compiled by SmartHomeWorkflow Research · Ring · Water Protection & Plumbing · ~$34.99 ($34.99 still rendering on ring.com, re-verified 2026-08-18 — but the page still offers only a 'Notify Me' signup and no add-to-cart control, so this remains a displayed price for a product that cannot be bought from Ring, not a live price. Figure made exact (it had been rounded to $35).)

⚠ 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.

Exactly which product this is^[10][15]

Model number: 4SF1S8-0EN0
Generation: Z-Wave (Ring Alarm accessory)
Region this page covers: US
Also sold or listed as: Ring Flood and Freeze Sensor · Alarm Flood & Freeze Sensor · B07M943G7L

“Not established” means we have not sourced that detail yet — not that the product has no model number, generation or regional variant. We publish the gap rather than filling it.

Compatibility

Ecosystem	Support	The catch
Amazon Alexa	InconclusiveWe researched this and the evidence doesn't settle it — the catch explains why^[27]	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 Home	InconclusiveWe researched this and the evidence doesn't settle it — the catch explains why^[28]	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 Home	InconclusiveWe researched this and the evidence doesn't settle it — the catch explains why^[28]	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.
SmartThings	InconclusiveWe researched this and the evidence doesn't settle it — the catch explains why^[16]	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 Assistant	Doesn't workVerified: does not work with this ecosystem^[18]	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.

Protocols: ZWAVE^[11][15]

Needs before it works: 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]

What it can do^[20]

You can tell it to

None documented by the vendor

It reports

Leak detected

Some of these may need a paid plan — see Subscription reality below.

Listed capabilities are what we could establish from vendor documentation. An ability missing here is unestablished — not necessarily absent.

Subscription reality^[3][14]

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

Free: Base station siren sounds on a flood or freeze event, An audible chirp or spoken alert at the base station, Arm and disarm from the physical keypad only
Behind a plan: Push and email alerts when water or freezing temperatures are detected, Auto Close — automatically closing a compatible Z-Wave water valve, Optional automated calls from the monitoring centre for flood and freeze events (from $4.99/mo)
Estimated 5-year subscription cost: ~$299 at $4.99/mo — price verified 2026-08-18

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

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". Current plan names and prices, after Ring renamed its plans on 14 January 2026 (older reviews still say "Ring Protect"): 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. The price recorded here is the entry plan. Still unanswered: Ring never says which plan unlocks basic flood and freeze alerts. Four separate Ring support pages say only "compatible Ring subscription", so do not assume the cheapest plan is enough. Another company's support pages — Zooz's — name "Ring Protect Basic" for a related feature, which maps to today's Solo plan, but that is the old naming and may be out of date.

Maintenance reality^[7]

Batteries: 3V lithium CR123A, non-rechargeable, included — expect roughly 36 months per set
Works without the internet: Not established — we have not sourced this yet. It does not mean the product fails without the internet.
Local annunciation survives a cloud or subscription lapse; remote awareness does not. The sensor can send an audible chirp or spoken alert to the base station, and the base station siren works with no subscription — but notifications, monitoring and Auto Close all route through Ring's service. Triggers on water contact or a temperature below 40 °F, and that threshold is not user-adjustable in the app. Operating range 32–120 °F. Battery life is Ring's 'up to 3 years' figure.
Security updates: No security-update support date is on record for this model yet. We haven't yet checked whether Ring publishes one, so this is a gap in our research — not a statement about the manufacturer.

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 →

Where these facts come from

No mark: Everything on this page without a mark comes from the people answerable for it: the manufacturer, the platform's own documentation, or a certification register. That is the standard we hold ourselves to.
Seller's spec sheet: This fact comes from a retailer's or a reviewer's specification listing instead of from the manufacturer. A few compatibility answers still rest on one, and we are replacing those with the maker's own word as we find it. The date is when we last checked, because these listings change without notice.
Someone's observation: This fact comes from an owner, a forum, or a community project — someone with the product in front of them rather than the company that makes it. Worth knowing, and not the same as the maker saying so.

Below is every source behind the facts on this page, numbered so you can trace any one of them. Each is quoted in the source's own words, with the date we last read it — we keep the wording exact rather than tidying it, so you can check what was actually said.

28 numbered sources· read them in the source's own words

[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] 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] 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] 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] 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] 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] 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: Maintenance
[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] 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] 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] 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] 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] 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] 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] 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] 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] 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] home-assistant.io, Ring integration documentation — Read what the other company publishes, verified 2026-08-20
Backs: Home Assistant compatibility
[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] 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] 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] 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] 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] 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] 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] the record's own customer-facing prose fields as they stood before 2026-09-10 (no new external read), verified 2026-09-10
[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] 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

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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