Third Reality 3RWS18BZ Compatibility
Water Leak Sensor · sensor Zigbee
The Third Reality 3RWS18BZ (Water Leak Sensor) is a Zigbee sensor from Third Reality. It monitors your home and reports back to your hub — useful for automations that react to motion, contact, temperature, humidity, leaks or air quality. It's confirmed working across 3 platforms, including ZHA (Home Assistant), Zigbee2MQTT, deCONZ. Because it speaks standard Zigbee, the Third Reality 3RWS18BZ pairs with any Zigbee coordinator once it's joined to one of the supported bridges above.
Compatibility at a glance
Third Reality 3RWS18BZ is a Zigbee sensor from Third Reality. It is compatible with: ZHA (Home Assistant), Zigbee2MQTT, deCONZ.
| ZHA (Home Assistant) | ✓ Supported |
| Zigbee2MQTT | ✓ Supported |
| deCONZ | ✓ Supported |
| Zigbee2Tasmota | ✗ Not supported |
| ioBroker | ✗ Not supported |
| Zigbee for Domoticz | ✗ Not supported |
| iHost | ✗ Not supported |
Where to buy the Third Reality 3RWS18BZ
The Third Reality 3RWS18BZ is widely available on Amazon in the US, UK, Canada and across Europe. Prices and stock vary by region — the link below opens results for your local Amazon store.
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Recommended Zigbee coordinators
The Third Reality 3RWS18BZ needs a Zigbee coordinator (USB stick) to join your network. These are the ones we'd buy:
As an Amazon Associate, WillItPair earns from qualifying purchases. This doesn't affect what you pay.
Frequently asked questions
Does the Third Reality 3RWS18BZ work with Home Assistant?
Yes. The Third Reality 3RWS18BZ is supported in Home Assistant — natively through the ZHA integration. It also works through Zigbee2MQTT.
Is the Third Reality 3RWS18BZ compatible with Zigbee2MQTT?
Yes, the Third Reality 3RWS18BZ is supported by Zigbee2MQTT.
What Zigbee hub do I need for the Third Reality 3RWS18BZ?
Any Zigbee coordinator paired with one of the supported bridges (ZHA (Home Assistant), Zigbee2MQTT, deCONZ) will let you use this device. A SONOFF Zigbee dongle or a ConBee II are common choices.