# Tapo T300

*Tapo / T300*

> The Tapo T300 water leak sensor runs on batteries and needs a Tapo hub. It works with Google Assistant. It suits Google Home users, with native support through the maker's hub. Home Assistant users reach it through an integration (the maker's hub).

- Canonical page: https://smarthomecanon.com/devices/tp-link-tapo-t300
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Tapo](https://smarthomecanon.com/brands/tp-link-tapo) |
| Category | Leak sensor |
| Model numbers | T300 |
| Status | Current[^1] |
| Type | Water leak sensor[^1] |
| Radio | 868 MHz (EU) / 922 MHz (US)[^1] |
| Hub needed | Tapo hub required[^1] |
| Power | 2 AAA batteries[^1] |
| Voice assistants | Google Assistant[^1] |
| Matter | unknown |

## Integration paths

**How the Tapo T300 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Proprietary + hub](https://smarthomecanon.com/protocols/proprietary-gateway) | Tapo hub[^1] | unknown | unknown |

**Platform support for the Tapo T300**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Proprietary + hub | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^1] |  |
| Proprietary + hub | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | tplink |

## Related pages

- [TP-Link Tapo hubs and sensors](https://smarthomecanon.com/lines/tp-link-tapo-hubs-and-sensors) (line)
- [Tapo](https://smarthomecanon.com/brands/tp-link-tapo) (brand)
- [Proprietary radio with a hub](https://smarthomecanon.com/protocols/proprietary-gateway) (protocol)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: T300 product page (tapo.com US). https://www.tapo.com/us/product/smart-sensor/tapo-t300/ (manufacturer, checked 2026-10-10)