# SwitchBot Indoor/Outdoor Thermo-Hygrometer

*SwitchBot / W3400010*

> Home Assistant reads the SwitchBot Indoor/Outdoor Thermo-Hygrometer, an IP65 Bluetooth thermometer-hygrometer, locally. A SwitchBot hub adds push notifications and Matter. It works indoors or outdoors. It suits Home Assistant users through an integration (a Matter bridge).

- Canonical page: https://smarthomecanon.com/devices/switchbot-indoor-outdoor-thermo-hygrometer
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SwitchBot](https://smarthomecanon.com/brands/switchbot) |
| Category | Temperature and humidity sensor |
| Model numbers | W3400010 |
| Status | Current[^1] |
| Type | Temperature and humidity meter (IP65, indoor and outdoor)[^2] |
| Measures | Temperature and humidity, plus dew point and VPD readings[^2] |
| Radio | withheld |
| Power | Battery, up to 2 years[^2] |
| Hub | Hub needed for push notifications and unlimited cloud storage[^2] |
| Matter | Through a SwitchBot hub (Hub 2, Hub 3 or Hub Mini Matter Enabled)[^3][^4] |
| Key spec | IP65 dust and water resistance. 68 days of on-board storage.[^2] |

## Integration paths

**How the SwitchBot Indoor/Outdoor Thermo-Hygrometer connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | SwitchBot Hub 2, Hub 3 or Hub Mini (Matter Enabled), A Matter controller on your platform, such as a HomePod or Apple TV for HomeKit[^3][^5] | unknown | unknown |
| [BLE](https://smarthomecanon.com/protocols/ble) | withheld | withheld | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | withheld | No[^4] | unknown |

**Platform support for the SwitchBot Indoor/Outdoor Thermo-Hygrometer**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |
| BLE | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | SwitchBot Bluetooth |
| Wi-Fi cloud | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | SwitchBot Cloud |

## Related pages

- [SwitchBot meters and sensors](https://smarthomecanon.com/lines/switchbot-meters-and-sensors) (line)
- [SwitchBot](https://smarthomecanon.com/brands/switchbot) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (protocol)
- [Bluetooth Low Energy](https://smarthomecanon.com/protocols/ble) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: SwitchBot Indoor/Outdoor Thermo-Hygrometer - SwitchBot US store. https://us.switch-bot.com/products/switchbot-indoor-outdoor-thermo-hygrometer (manufacturer, checked 2026-10-10)
[^2]: SwitchBot Indoor/Outdoor Thermo-Hygrometer product page. https://www.switch-bot.com/products/switchbot-indoor-outdoor-thermo-hygrometer (manufacturer, checked 2026-10-10)
[^3]: SwitchBot Matter support page. https://www.switch-bot.com/pages/matter (manufacturer, checked 2026-10-10)
[^4]: SwitchBot API (OpenWonderLabs/SwitchBotAPI). https://github.com/OpenWonderLabs/SwitchBotAPI (manufacturer, checked 2026-10-10)
[^5]: SwitchBot Hub 2 product page. https://www.switch-bot.com/products/switchbot-hub-2 (manufacturer, checked 2026-10-10)