Product Library / Sensors & Detectors

Research profile · verified 2026-09-25 · sources re-checked 2026-11-02

Aqara Door and Window Sensor P2

Compatibility at a glance

Does it work with your home?

[14]
[14][36][39][40]
[14][35]
[14]
[15][38]

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: THREAD · MATTER[1][2][3][4][5][9][24][37]

Before you buy

What do you need to make it work?

Hub options need a closer check

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

Equipment named · relationship unclear

Thread border router

Equipment named · relationship unclear

Matter controller

You need a hub that is both a Matter controller and a Thread border router before this sensor does anything. Aqara says so outright. A HomePod mini, the 2021 Apple TV 4K or the Wi-Fi + Ethernet 2022 model, a Nest Hub (2nd gen), a newer Echo or Aqara's own Hub M3 all qualify. There is no Zigbee version and no way to use it without one of those.[2]

Platform setup limits

Home Assistant: If this device joins over Thread and your Thread border router is Apple's (a HomePod or Thread-capable Apple TV), Home Assistant can't deliver its firmware updates today. Home Assistant documentation · checked 2026-09-25

Equipment that adds features

Check which features need it

Aqara Hub M3

Optional equipment is listed; its role has not been established.[2]

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

Contact state

The device reports this event.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [8]

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?[8]

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

Controls
Not established from vendor documentation
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 HomeWorks[14]Google HomeWorks[14][36][39][40]AlexaWorks[14][35]SmartThingsWorks[14]Home AssistantWorks; contact state unconfirmed[15][38]
Contact stateReported event
Event

Supported for this Matter device type

Automation

✓ Listed for this device type

Event

Supported for this Matter device type

Automation

✓ Listed for this device type

Event

Supported for this Matter device type

Automation

✓ Listed for this device type

Event

Supported for this Matter device type

Automation

✓ Documented for this model[42][43]

Event

Not stated

Automation

? Not stated

✓ 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.

A device-type listing describes the platform’s general support; it does not confirm this exact model.

Setup and sources

Apple Home

Needs an Apple Home hub with Thread radio (HomePod mini, HomePod 2nd gen, or Apple TV 4K with Thread).[14]

Google Home

Works via Matter over Thread: Google's Matter list marks contact sensors as available by Google Assistant, in the Google Home app and on a Smart Display. Needs a Google Thread border router (e.g., Nest Hub 2nd gen, Nest Hub Max, Nest Wifi Pro).[14][36][39][40]

Alexa

Via Matter over Thread. Needs an Echo that is both a Matter controller and a Thread border router, such as the 4th-generation Echo.[14][35]

SmartThings

Needs a SmartThings hub that provides Thread border routing (e.g., Station, Hub v3/2018+, Aeotec).[14]

Home Assistant

Connects through Home Assistant's Matter support: the sensor is Matter certified as a contact sensor. Whether its open or closed state reaches Home Assistant is unconfirmed: Home Assistant's Matter page does not name contact sensors among what it handles, and Aqara does not mention Home Assistant. You'll need Home Assistant's Matter server running plus a Thread border router on your network.[15][38]

Device documentation: [8]

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 AlexaWorksWorks with this ecosystem[14][35]Via Matter over Thread. Needs an Echo that is both a Matter controller and a Thread border router, such as the 4th-generation Echo.In Amazon Alexa you also need: a Thread border router · a Matter controller
Google HomeWorksWorks with this ecosystem[14][36][39][40]Works via Matter over Thread: Google's Matter list marks contact sensors as available by Google Assistant, in the Google Home app and on a Smart Display. Needs a Google Thread border router (e.g., Nest Hub 2nd gen, Nest Hub Max, Nest Wifi Pro).In Google Home you also need: a Thread border router · a Matter controller
Apple HomeWorksWorks with this ecosystem[14]Needs an Apple Home hub with Thread radio (HomePod mini, HomePod 2nd gen, or Apple TV 4K with Thread).In Apple Home you also need: a Thread border router · a Matter controller
SmartThingsWorksWorks with this ecosystem[14]Needs a SmartThings hub that provides Thread border routing (e.g., Station, Hub v3/2018+, Aeotec).In SmartThings you also need: a Thread border router · a Matter controller
Home AssistantWorks; contact state unconfirmedWorks; contact state unconfirmed — see the catch[15][38]Connects through Home Assistant's Matter support: the sensor is Matter certified as a contact sensor. Whether its open or closed state reaches Home Assistant is unconfirmed: Home Assistant's Matter page does not name contact sensors among what it handles, and Aqara does not mention Home Assistant. You'll need Home Assistant's Matter server running plus a Thread border router on your network.In Home Assistant you also need: a Thread border router · a Matter controller

Plans and ongoing costs[19][25]

✓ Works without a subscription: Yes.

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

No subscription, and no Aqara account fee: the sensor's alerts and its readings go to whichever hub you pair it with, and everything this record lists it doing is included in the purchase price.

Maintenance and offline use[2]

Who it's for

A home that already owns a Thread border router (HomePod mini, the 2021 Apple TV 4K or the Wi-Fi + Ethernet 2022 model, Nest Hub, a newer Echo, or Aqara's Hub M3) and wants a door sensor that works locally across ecosystems without buying an Aqara Zigbee hub.

Check availability at Aqara

This opens Aqara'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 →

43 numbered sources· read them in the source's own words
  1. [1] csa-iot.org/csa_product/door-and-window-sensor-p2/ (re-read 2026-08-09): certificate CSA22085MAT40085-24, certified 11/03/2022, VID 0x115F, PID 0x2002, Transport Interface 'Thread, Bluetooth'. — Checked a certification register, verified 2026-08-09
    Backs: Protocols
    page changed on 2026-11-02, after this reading
  2. [2] us.aqara.com/products/aqara-door-and-window-sensor-p2 (official US product+spec page; specs quoted verbatim) — Read on the maker's own site, verified 2026-07-16
    Backs: Protocols, Price, Batteries, Works without the internet, Required hub or bridge, Product identity
  3. [3] csa-iot.org/csa_product/door-and-window-sensor-p2/ (CSA certified-products registry, via search snippet) Certificate CSA22085MAT40085-24, the number this entry's note records from that certificate. — Checked a certification register, verified 2026-07-16
    Backs: Protocols, Product identity
    page changed on 2026-11-02, after this reading
  4. [4] aqara.com/en/product/door-and-window-sensor-p2/ — Read on the maker's own site, verified 2026-07-16
    Backs: Protocols
  5. [5] https://us.aqara.com/products/door-and-window-sensor-p2 structured offer data read 2026-08-08: $29.99, SKU DTC-US-SN-DWSP2, available. Radios from https://csa-iot.org/csa_product/door-and-window-sensor-p2/ — certificate CSA22085MAT40085-24, certified 2022-11-03, Specification Version 1.0, Vendor ID 0x115F, Product ID 0x2002, and **Transport Interface: 'Thread, Bluetooth'**. ⚠ The Bluetooth in that field is COMMISSIONING transport for a Matter-over-Thread device, not a control path, so it is deliberately not added to this record's protocols — the same call made for the Tapo L535E on 2026-08-08. The catalogue is split on this (8 of 28 Matter-over-Thread records list bluetooth, 20 do not) and has no documented rule; the raw certificate field is recorded here so the evidence survives whichever way the rule lands. Warranty: https://us.aqara.com/pages/limited-warranty — Aqara's published warranty table gives 'Smart Home Sensor 12 Months'. ⚠ Recorded with its limitation rather than as a flat 12-month promise: the same page states the warranty covers 'purchases on us.aqara.com' and excludes 'Items purchased from sources other than us.aqara.com', so a unit bought from a retailer is not covered by this term. — Read on the maker's own site, verified 2026-08-08
    Backs: Price, Product identity, Market availability, Service status, Protocols, Research status
  6. [6] us.aqara.com, Door and Window Sensor P2 product page — Read on the maker's own site, verified 2026-08-17
    Backs: Power source
  7. [7] Aqara (Lumi United Technology Co., Ltd), Statement of Compliance for UK — Door and Window Sensor P2, read 2026-08-19. Model name on the document: DW-S02D, DW-S02E. Verbatim: 'we state that the defined support period for the product above is till 12/31/2026'. Located via Aqara's own compliance library at https://www.aqara.com/en/security-certifications/, which lists this product with these model numbers. — Read the original source directly, verified 2026-08-19
    Backs: Security-update support period
    page unchanged as of 2026-11-02
  8. [8] aqara.com product page for the Door and Window Sensor P2, read 2026-08-20. The page states the automation use directly rather than describing a sensor: "IF Door and Window Sensor is opened THEN Turn off the thermostat", and a second worked example, "IF Door and Window Sensor P2 is opened … THEN Deactivate the automation". Ecosystems are given as Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, Aqara Home and Home Assistant, all over Matter/Thread, with the caveat: "The functionality such as automation conditions may vary throughout the different ecosystems." — Read on the maker's own site, verified 2026-08-20
    Backs: Capabilities
  9. [9] This record's existing per-model Matter evidence, re-read 2026-08-20 against the settled meaning of the protocols a device itself speaks: certificate CSA22085MAT40085 · Matter over Thread. No new outside source was read — the evidence already on this record was re-examined and this entry states what it establishes., verified 2026-08-20
    Backs: Protocols
  10. [10] 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
  11. [11] SmartHomeWorkflow record maintenance — filling in which region the security-support statement applies to, verified 2026-08-27
  12. [12] Record-keeping entry: the migrated research stamp was replaced by the read that actually established this record, 2026-08-30, verified 2026-08-30
  13. [13] CSA certified-product entry csa-iot.org/csa_product/door-and-window-sensor-p2/, certificate CSA22085MAT40085-24 (certified 11/03/2022), which prints VID 0x115F and PID 0x2002. Read into this record on 2026-08-09 by the entry that established which protocols the sensor speaks; this entry lifts the two identifiers out of that entry's prose and gives them fields of their own. — Recorded from our own earlier read, verified 2026-08-09
    Backs: Certification and product IDs
    page changed on 2026-11-02, after this reading
  14. [14] Aqara US store, Door and Window Sensor P2 product page — verbatim, and model-scoped by name: “As one of the first sensors to support Matter natively, the Door and Window Sensor P2 connects directly to Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and Aqara Home in the near future through the Matter-compatible Aqara Thread border router.” The feature copy states the path the same way — “Native Matter Support — Allowing the direct connection to platforms including Apple Home, Google Home, Amazon Alexa and more” — and the requirement twice: “[Matter Compatibility] A Matter Controller & Thread Border Router 2-in-1 is required to enjoy seamless integration with a Matter-enabled smart home ecosystem” and “To use the Door and Window Sensor P2 with a particular ecosystem, a Matter-compatible Thread Border Router is required”. — Read on the maker's own site, verified 2026-09-02
    Backs: Amazon Alexa compatibility, Google Home compatibility, Apple Home compatibility, SmartThings compatibility
  15. [15] Home Assistant's own Matter integration documentation — verbatim: “For communicating with Matter devices, the Home Assistant integration runs its own ‘Matter controller’ as an app (formerly known as add-on).” The same page states the Thread half: “The Thread border router forwards traffic from the devices in the Thread network to devices outside that network”, and names third-party border routers as the route for Thread accessories. — Read what the other company publishes, verified 2026-09-02
    Backs: Home Assistant compatibility
  16. [16] the record's own customer-facing prose fields as they stood before 2026-09-05 (no new external read), verified 2026-09-05
  17. [17] Apple Support, ‘Set up your HomePod, HomePod mini, or Apple TV as a home hub’, read together with ‘Identify your Apple TV model’ at support.apple.com/en-us/101605. — Read the original source directly, verified 2026-09-06
  18. [18] this record's own lifecycle note as it stood before 2026-09-16 (no new external read): its wording was rewritten so it reads in plain language. No fact, date, source or value changed, and the earlier wording is kept on this record., verified 2026-09-16
  19. [19] Aqara's US store listing for the Door and Window Sensor P2, showing $29.99 and a buy flow with no plan, tier or recurring fee attached to the sensor — Read on the maker's own site, verified 2026-09-17
    Backs: Subscription
  20. [20] Aqara's own US store listing for the Door and Window Sensor P2, read 2026-09-18. The listing is titled "Door and Window Sensor P2", is sold by Aqara LLC, and publishes its own part codes and retail barcodes: one version — part code DTC-US-SN-DWSP2, barcode 0192784000847. — Read on the maker's own site, verified 2026-09-18
    Backs: Certification and product IDs
    page unchanged as of 2026-11-02
  21. [21] Aqara's US store page for the Door and Window Sensor P2, https://us.aqara.com/products/aqara-door-and-window-sensor-p2, read in full 2026-09-20. Battery text: "equipped with a powerful CR123A battery, it provides uninterrupted protection with infrequent replacements." · "The battery life may vary depending on the Thread Border Router and the Matter-enabled app(s) the sensor is connected to. For best results, Aqara border router is advised" · specification row "Lithium Metal (CR123A, Included)". Also read on the same page and unchanged: "$29.99 USD", "Thread, BLE", "Native Matter Support", "A Matter Controller & Thread Border Router 2-in-1 is required", "Compatible Platforms: Aqara, Apple Home, Alexa, Google Home, and SmartThings", and "The device does not currently support Aqara Home app." — Read the original source directly, verified 2026-09-20
    Backs: Batteries
  22. [22] Apple Support, 'Apple TV 4K (2nd generation) - Technical Specifications', which lists Thread among the 2021 model's connections and says: 'Thread-based accessories require a Thread-enabled home hub, such as Apple TV 4K, HomePod (2nd generation), HomePod mini, or a third-party Thread border router.' — Read on the maker's own site, verified 2026-09-23
  23. [23] the record's own customer-facing prose fields as they stood before 2026-09-25 (no new external read), verified 2026-09-25
  24. [24] Aqara's own US store listing for the Door and Window Sensor P2, read in full 2026-09-25. Verbatim: "Door and Window Sensor P2 $29.99 USD" with an Add to Cart control and no lower or struck-through price; specification rows "Batteries Lithium Metal (CR123A, Included)", "Wireless Protocols Thread, BLE" and "Compatible Platforms Aqara, Apple Home, Alexa, Google Home, and SmartThings"; the feature line "Native Matter Support"; the requirement "A Matter-compatible Thread Border Router is required"; and "Please note: The device does not currently support Aqara Home app." The store's trust strip still reads "30-Day Money-Back Guarantee" and "Hassle-Free Warranty". — Read the original source directly, verified 2026-09-25
    Backs: Price, Product identity, Market availability, Service status, Protocols, Power source, Research status
  25. [25] Aqara's own US store listing for the Door and Window Sensor P2, the same 2026-09-25 full read, checked for any plan, tier, membership, trial or recurring fee on this sensor. None appears. The only occurrences of the word 'subscription' still belong to a cross-sold camera, in both directions: "no subscription or monthly fees required" and "iCloud (50 GB or more iCloud Subscription is required)". — Read on the maker's own site, verified 2026-09-25
    Backs: Subscription
  26. [26] Aqara's Global Security & Compliance Statements page, read in full on 2026-09-29. Policy sentence, verbatim: 'We will maintain the security updates for at least 2 years from the launch day of certain device models.' Rows for this product: UK PSTI table 'Door and Window Sensor P2 DW-S02D, DW-S02E Active 2024-04-09' · Australian table 'Door and Window Sensor P2 DW-S02D Active 2025-08-20' · EU Data Act table 'Door and Window Sensor P2 DW-S02D, DW-S02E Active 2025-10-23'. — Read on the maker's own site, verified 2026-09-29
    Backs: Security-update support period
    page changed on 2026-11-02, after this reading
  27. [27] SmartHomeWorkflow record maintenance: the rung-by-rung search for a model code on this product's US pages, 2026-09-29 (each page read has its own entry of this date)., verified 2026-09-29
  28. [28] Aqara's US store page for the Door and Window Sensor P2, read in full on 2026-09-29. It prints no model code; its manual link points to the Door and Window Sensor P1's user manual. — Read the original source directly, verified 2026-09-29
  29. [29] Aqara's US store page for the Door and Window Sensor P2 at its second address, read in full on 2026-09-29. It serves the same page as the first address (same fingerprint) and prints no model code. — Read the original source directly, verified 2026-09-29
  30. [30] Aqara's US store product data for the Door and Window Sensor P2, read 2026-09-29: the only code it carries is the sku 'DTC-US-SN-DWSP2'. — Read on the maker's own site, verified 2026-09-29
    page unchanged as of 2026-11-02
  31. [31] Aqara's international product page for the Door and Window Sensor P2, read in full on 2026-09-29. It prints no model code and links no manual. — Read the original source directly, verified 2026-09-29
  32. [32] The CSA certified-product page for the Aqara Door and Window Sensor P2, read in full on 2026-09-29: certificate CSA22085MAT40085-24, certified 2022-11-03, product ID 0x2002, vendor ID 0x115F. No model code. — Read the original source directly, verified 2026-09-29
    page changed on 2026-11-02, after this reading
  33. [33] Aqara (Lumi United Technology Co., Ltd), Statement of Compliance for UK, read in full on 2026-09-29. Verbatim: 'Product: Door and Window Sensor P2' · 'Model name: DW-S02D,DW-S02E' · 'we state that the defined support period for the product above is till 12/31/2026.' · 'Place and date of issue: Place: Shenzhen, China; Date: April 9, 2024'. — Read the original source directly, verified 2026-09-29
    page unchanged as of 2026-11-02
  34. [34] Aqara's Product Security Support Policy (2024-08), read in full on 2026-09-29. Row, verbatim: 'Sensor Door and Window Sensor P2 DW-S02D,DW-S02E 2023.07.06 2026.06.30'. — Read the original source directly, verified 2026-09-29
    page unchanged as of 2026-11-02
  35. [35] Amazon's own developer page "Alexa Supported Matter Device Categories and Clusters", read 2026-09-30 at about 20:30 UTC. It opens: "Alexa supports many device types from the following Matter device categories: Matter hubs, lighting and smart plugs, generic buttons, sensors, closure devices (door locks, window coverings), thermostats, fans, air purifiers, appliances (room air conditioners, dishwashers), and robotic vacuums." In the table, the row for this product's device type reads, verbatim: "Contact sensor Detect and report contact Identify, Boolean State Alexa.ContactSensor". Footer: "Last updated: Apr 08, 2026"., verified 2026-09-30
    Backs: Amazon Alexa compatibility
    page changed on 2026-10-24, after this reading
  36. [36] Google's own developer page "Supported device types | Matter", English edition, read 2026-09-30 at about 20:30 UTC. Above its table it says: "Note: Device types other than the ones listed here are not officially supported in the Google Home ecosystem." In the table, the row for this product's device type reads, verbatim: "Contact Sensor Boolean State 1.0 Sensor". Footer: "Last updated 2024-12-20 UTC.", verified 2026-09-30
    Backs: Google Home compatibility
  37. [37] Aqara's own US store page for the Door and Window Sensor P2, read in full on 2026-10-02. Verbatim, features: "Native Matter Support Allowing the direct connection to platforms including Apple Home, Google Home, Amazon Alexa and more." · "A Matter-compatible Thread Border Router is required" · "equipped with a powerful CR123A battery, it provides uninterrupted protection with infrequent replacements." Verbatim, Specifications: "Batteries Lithium Metal (CR123A, Included)" · "Wireless Protocols Thread, BLE". — Read the original source directly, verified 2026-10-02
    Backs: Protocols, Power source
  38. [38] The Connectivity Standards Alliance's certified-product page for the Door and Window Sensor P2, read in full on 2026-10-07. In our words: it lists the sensor under Lumi United Technology with certificate CSA22085MAT40085-24, certified in November 2022 against Matter 1.0 over Thread, with the contact sensor (0015) as its primary device type. — Re-checked this against its sources, verified 2026-10-07
    Backs: Home Assistant compatibility
    page changed on 2026-11-02, after this reading
  39. [39] Aqara's US store page for the Door and Window Sensor P2, read in full on 2026-10-07: "As one of the first sensors to support Matter natively, the Door and Window Sensor P2 connects directly to Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and Aqara Home in the near future through the Matter-compatible Aqara Thread border router." · "Native Matter Support Allowing the direct connection to platforms including Apple Home, Google Home, Amazon Alexa and more." Aqara's own copy does not mention Home Assistant. — Re-checked this against its sources, verified 2026-10-07
    Backs: Google Home compatibility
  40. [40] Google Home Developers, 'Supported device types' (Matter), read in full on 2026-10-07. Row: "Contact Sensor Boolean State 1.0", marked available in all three control columns: Google Assistant, Google Home app (GHA) and Smart Display. — Re-checked this against its sources, verified 2026-10-07
    Backs: Google Home compatibility
    page changed on 2026-11-02, after this reading
  41. [41] This record's own entries: the us.aqara.com product-page entry (it records the Thread border router plus Matter controller requirement); the hubRequired prose names Aqara's own Hub M3 among the hubs that qualify., verified 2026-10-09
  42. [42] SmartThings' own matter-sensor Edge driver fingerprint file (its source in the SmartThingsCommunity/SmartThingsEdgeDrivers repository). Verbatim: id: "Aqara/DoorAndWindow" · deviceLabel: Aqara Door and Window Sensor P2 · vendorId: 0x115F · productId: 0x2002 · deviceProfileName: contact-battery — Read the platform's own documentation, verified 2026-10-13
    Backs: What your assistant can automate
    page unchanged as of 2026-11-02
  43. [43] SmartThings' own contact-battery device profile in the matter-sensor Edge driver (its source in the SmartThingsCommunity/SmartThingsEdgeDrivers repository). Verbatim: name: contact-battery · components: · - id: main · capabilities: · - id: contactSensor · version: 1 (no optional flag) — Read the platform's own documentation, verified 2026-10-13
    Backs: What your assistant can automate

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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