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ThirdReality Door and Window Sensor

ThirdReality

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ThirdReality Door and Window Sensor, product photo
Image: ThirdReality

Does the ThirdReality Door and Window Sensor work with HomeKit, Alexa, and Google Home?

The ThirdReality Door and Window Sensor is a Zigbee contact sensor.

It pairs directly with an Echo that has a built-in Zigbee hub, SmartThings, Hubitat, Homey or Home Assistant (ZHA or Zigbee2MQTT). HomeKit and Google Home reach it through the ThirdReality Smart Bridge MZ1, sold separately. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users through an integration (a Matter bridge).

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Yes[1]
Matter via Bridge, via integration
Google Home
Yes[1]
Matter via Bridge, via integration
Alexa
Yes[1]
Matter via Bridge, via integration; 1 other path
SmartThings
Yes[1]
Matter via Bridge, via integration; 1 other path
Home Assistant
Yes[1]
Matter via Bridge, via Matter through the Smart Bridge MZ1; 1 other path

Key facts

ThirdReality Door and Window Sensor facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[2]
List price$19.99[2] as of
TypeContact[2]
RadioZigbee[2]
Hub neededZigbee hub required[2]

Integration paths

How the ThirdReality Door and Window Sensor connects

2 pathsHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
Matter via BridgeThirdReality Smart Bridge MZ1 (sold separately)[1]unknownunknown
ZigbeeHUBA compatible Zigbee hub or coordinator[2]unknownunknown
About these columns
Requires
Hardware the path needs beyond the device and a controller.
Local
Yes when control on this path keeps working with the internet down.
Platforms
The platforms that work with the device on this path: Native (out of the box), Via integration (needs an add-on) or Not supported.

Home Assistant and Homey

Ways to add the ThirdReality Door and Window Sensor

3 routesHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantVia Zigbee/Z-Wave[3][4]zigbee2mqttZigbee
  • Works with Home Assistant: Certified[3][4]
Model namedNone stated
Home AssistantVia Matter bridge[1][5]matterMatter via Bridge
  • Quality: No score[1][5]
  • IoT class: Local Push[1][5]
  • Works with Home Assistant: Not certified[1][5]
Model namedLimited: Not every device behind a Matter bridge is guaranteed to work[1][5]
HomeyOfficial app (local)[6]com.thirdreality.appZigbee
  • App: Official[6]
  • Runs on: Homey Pro, Homey Cloud[6]
Product line namedNone stated
About these columns
Level
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.

Cite this page

ThirdReality Door and Window Sensor. Smart Home Canon. https://smarthomecanon.com/devices/thirdreality-door-and-window-sensor. Last checked 2026-10-20.

Sources

  1. [1]
    MFRtr-common-us-prod.s3.us-west-1.amazonaws.com / Door Sensor User Manual - ThirdReality
    Accessed Back to text
  2. [2]
    MFRthirdreality.com / Door and Window Sensor - ThirdReality store
    Accessed Back to text
  3. [3]
    DBzigbee2mqtt.io / Third Reality 3RDS17BZ control via MQTT | Zigbee2MQTT
    Accessed Back to text
  4. [4]
    DOChome-assistant.io / Third Reality - Home Assistant
    Accessed Back to text
  5. [5]
    DOChome-assistant.io / Matter - Home Assistant
    Accessed Back to text
  6. [6]
    DOChomey.app / Homey App Store: Third Reality
    Accessed Back to text