# Eve Door & Window

*Eve / 20EBN9901, 10EBN9951*

> Door & Window is a Thread contact sensor that uses Matter and a replaceable half-AA battery. It needs a Matter controller and a Thread border router. It works with HomeKit, SmartThings, Alexa, Google Home, Home Assistant and Homey. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users, with native support through Matter over Thread.

- Canonical page: https://smarthomecanon.com/devices/eve-door-and-window
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Eve](https://smarthomecanon.com/brands/eve) |
| Category | Contact sensor |
| Model numbers | 20EBN9901, 10EBN9951 |
| Status | Current[^1] |
| Type | Contact sensor[^2] |
| Radio | Thread[^2] |
| Matter | Matter over Thread[^2][^3] |
| Power | 1/2 AA battery (ER14250 3.6 V)[^2] |
| Thread role | End device; not a border router[^2] |
| Region | Global[^2] |
| Released | 2023-04[^3] |

## Integration paths

**How the Eve Door & Window connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Thread](https://smarthomecanon.com/protocols/matter-thread) | Matter controller, Thread border router[^2] | unknown | unknown |

**Platform support for the Eve Door & Window**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Thread | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Native[^2] |  |
| Matter / Thread | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Native[^2] |  |
| Matter / Thread | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^2] |  |
| Matter / Thread | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^2] |  |
| Matter / Thread | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Native[^2] |  |
| Matter / Thread | [Homey](https://smarthomecanon.com/platforms/homey) | Native[^2] |  |

## Releases

**Eve Door & Window release events**

| Date | Event | Detail |
| --- | --- | --- |
| 2023-04-17[^3] | Released | Matter version available; free upgrade for existing Thread models. |

## Related pages

- [Eve sensors](https://smarthomecanon.com/lines/eve-sensors) (line)
- [Eve](https://smarthomecanon.com/brands/eve) (brand)
- [Matter over Thread](https://smarthomecanon.com/protocols/matter-thread) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Eve Store (US): product list. https://www.evehome.com/en-us/store (manufacturer, checked 2026-10-20)
[^2]: Eve: Eve Door & Window. https://www.evehome.com/en-us/eve-door-window (manufacturer, checked 2026-10-20)
[^3]: Eve press release, 2023-03-28: Eve starts rolling out Matter-enabled devices. https://www.evehome.com/en/news/matter-enabled-devices (manufacturer, checked 2026-10-13)