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  • Getting started
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Devices
  • Zigbee

    • Zigbee network
    • Improve network range and stability
    • Secure your Zigbee network
    • Sniff Zigbee traffic
    • Create a CC2530 router
  • Support new devices

    • Support new devices
    • Support new Tuya devices
    • Find Tuya Data Points
  • Remote Adapter

    • Connect to a remote adapter
    • Connect to a remote Sonoff ZBBridge
  • More

    • 3D cases
    • External converters
    • External extensions
    • Switch to the dev branch
    • Get Tuya and Xiaomi OTA url
  • Forum
  • Discord
  • Issues
  • Donate
GitHub
GitHub (docs)

Third Reality 3RWS18BZ

Model3RWS18BZ
VendorThird Reality
DescriptionWater sensor
Exposeswater_leak, battery_low, battery, water_leak_buzzer, water_leak_buzzer_alarm_mode
PictureThird Reality 3RWS18BZ

OTA updates

This device supports OTA updates, for more information see OTA updates.

Exposes

Water leak (binary)

Indicates whether the device detected a water leak. Value can be found in the published state on the water_leak property. It's not possible to read (/get) or write (/set) this value. If value equals true water leak is ON, if false OFF.

Battery low (binary)

Indicates whether the battery of the device is almost empty. Value can be found in the published state on the battery_low property. It's not possible to read (/get) or write (/set) this value. If value equals true battery low is ON, if false OFF.

Battery (numeric)

Remaining battery in %. Value can be found in the published state on the battery property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"battery": ""}. It's not possible to write (/set) this value. The minimal value is 0 and the maximum value is 100. The unit of this value is %.

Water leak buzzer (binary)

Turns the water-leak detection buzzer on or off.. Value can be found in the published state on the water_leak_buzzer property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"water_leak_buzzer": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"water_leak_buzzer": NEW_VALUE}. If value equals ON water leak buzzer is ON, if OFF OFF.

Water leak buzzer alarm mode (numeric)

Sets the buzzers beeping mode for water-leak alerts.(0 = continuous;values = beeping duration (minutes).). Value can be found in the published state on the water_leak_buzzer_alarm_mode property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"water_leak_buzzer_alarm_mode": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"water_leak_buzzer_alarm_mode": NEW_VALUE}. The minimal value is 0 and the maximum value is 255. The unit of this value is min.

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Last Updated: 12/21/25, 8:56 PM