# YoLink Sprinkler Controller

*YoLink / YS4102*

> The YoLink Sprinkler Controller (YS4102) runs in-ground sprinkler zones from a 24 VAC supply through a YoLink hub. It suits Google Home and Alexa 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/yolink-sprinkler-controller
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [YoLink](https://smarthomecanon.com/brands/yolink) |
| Category | Sprinkler controller |
| Model numbers | YS4102 |
| Status | Current[^1] |
| Type | Sprinkler controller[^1] |
| Power | 24 VAC[^1] |
| Location | Indoor only[^1] |
| Key spec | Operating 14 to 122 F[^1] |
| Radio | LoRa to a YoLink hub[^1] |

## Integration paths

**How the YoLink Sprinkler Controller connects**

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

**Platform support for the YoLink Sprinkler Controller**

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

## Related pages

- [YoLink water valve controllers and sprinkler controllers](https://smarthomecanon.com/lines/yolink-water-valves-and-irrigation) (line)
- [YoLink](https://smarthomecanon.com/brands/yolink) (brand)
- [Proprietary radio with a hub](https://smarthomecanon.com/protocols/proprietary-gateway) (protocol)
- [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)

## Sources

[^1]: YoLink Sprinkler Controller - YoLink. https://shop.yosmart.com/products/ys4102 (manufacturer, checked 2026-10-20)