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ThirdReality Smart Presence Sensor R2

ThirdReality / R2

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ThirdReality Smart Presence Sensor R2, product photo
Image: ThirdReality

Does the ThirdReality Smart Presence Sensor R2 work with HomeKit, Alexa, and Google Home?

The Smart Presence Sensor R2 detects presence with a 24 GHz mmWave radar, so it works without a camera.

It is a battery-powered Zigbee 3.0 sensor with five adjustable sensitivity levels and three AA batteries. It suits Alexa users, with native support through Zigbee. SmartThings and Home Assistant users reach it through an integration (Zigbee).

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Unknown
Unknown
Google Home
Unknown
Unknown
Alexa
Yes[1]
Zigbee, native
SmartThings
Yes[1]
Zigbee, via integration
Home Assistant
Yes[1]
Zigbee, via ZHA or Zigbee2MQTT

Key facts

ThirdReality Smart Presence Sensor R2 facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[1]
List price$39.99[1] as of
TypePresence[1]
RadioZigbee 3.0[1]
Power3 AA batteries[1]
Hub neededZigbee hub required[1]

Integration paths

How the ThirdReality Smart Presence Sensor R2 connects

1 pathHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
ZigbeeHUBA Zigbee hub or an Echo device with a built-in Zigbee hub[1]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 Smart Presence Sensor R2

2 routesHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantVia Zigbee/Z-Wave[2]zigbee2mqttZigbee
  • Works with Home Assistant: Not certified[2]
Model namedNone stated
HomeyOfficial app (local)[3]com.thirdreality.appZigbee
  • App: Official[3]
  • Runs on: Homey Pro, Homey Cloud[3]
Model 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 Smart Presence Sensor R2. Smart Home Canon. https://smarthomecanon.com/devices/thirdreality-smart-presence-sensor-r2. Last checked 2026-10-20.

Sources

  1. [1]
    MFRthirdreality.com / Smart Presence Sensor R2 - ThirdReality store
    Accessed Back to text
  2. [2]
    DBzigbee2mqtt.io / Third Reality 3RPS01083Z control via MQTT | Zigbee2MQTT
    Accessed Back to text
  3. [3]
    DOChomey.app / Homey App Store: Third Reality
    Accessed Back to text