# ThirdReality Smart Water Leak Sensor

*ThirdReality*

> The ThirdReality Smart Water Leak Sensor sounds a 120 dB alarm even when the internet is down. It is a Zigbee sensor, and the two AAA batteries are included and rated for up to 3 years. It suits HomeKit, Google Home and Home Assistant users through an integration (a Matter bridge). SmartThings users reach it through an integration (Zigbee).

- Canonical page: https://smarthomecanon.com/devices/thirdreality-smart-water-leak-sensor
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [ThirdReality](https://smarthomecanon.com/brands/thirdreality) |
| Category | Leak sensor |
| Status | Current[^1] |
| Type | Water leak[^1] |
| Radio | Zigbee[^1] |
| Power | 2 AAA batteries (included)[^1] |
| Hub needed | Zigbee hub required[^1] |

## Integration paths

**How the ThirdReality Smart Water Leak Sensor connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | ThirdReality Smart Bridge MZ1 (sold separately)[^1] | unknown | unknown |
| [Zigbee](https://smarthomecanon.com/protocols/zigbee) | A Zigbee hub[^1] | unknown | unknown |

**Platform support for the ThirdReality Smart Water Leak Sensor**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Via integration[^1] |  |
| Matter via Bridge | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |
| Matter via Bridge | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |
| Zigbee | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] |  |
| Zigbee | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Zigbee | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | com.thirdreality.app |

## Related pages

- [ThirdReality Zigbee sensors](https://smarthomecanon.com/lines/thirdreality-zigbee-sensors) (line)
- [ThirdReality](https://smarthomecanon.com/brands/thirdreality) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (protocol)
- [Zigbee](https://smarthomecanon.com/protocols/zigbee) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Smart Water Leak Sensor - ThirdReality store. https://www.thirdreality.com/products/water-leak-sensor (manufacturer, checked 2026-10-12)