# Rain Bird ESP-ME3

*Rain Bird / ESP4MEI, ESP4ME3, ESP4ME3EUR, ESP4ME3AUS*

> The Rain Bird ESP-ME3 is a 4-station sprinkler controller that expands to 22 stations with plug-in modules and connects to Wi-Fi once an LNK2 WiFi Module is added. It suits Alexa users, with native support through the maker's cloud.

- Canonical page: https://smarthomecanon.com/devices/rain-bird-esp-me3
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | Rain Bird |
| Category | Sprinkler controller |
| Model numbers | ESP4MEI, ESP4ME3, ESP4ME3EUR, ESP4ME3AUS |
| Status | Current[^1] |
| Type | Sprinkler controller[^1] |
| Zones | 4, expandable to 22[^1] |
| Connectivity | Wi-Fi with the LNK2 WiFi Module, sold separately[^1] |
| Mounting | Indoor (ESP4MEI) or indoor/outdoor (ESP4ME3)[^1] |
| Works with | Alexa[^2] |

## Integration paths

**How the Rain Bird ESP-ME3 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | LNK2 WiFi Module (sold separately), Wi-Fi network, Rain Bird app[^1] | unknown | unknown |

**Platform support for the Rain Bird ESP-ME3**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Wi-Fi cloud | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^2] |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | unknown |  |
| Wi-Fi cloud | [HomeKit](https://smarthomecanon.com/platforms/homekit) | unknown |  |

## Releases

**Rain Bird ESP-ME3 release events**

| Date | Event | Detail |
| --- | --- | --- |
| 2019-04-08[^3] | Announced |  |

## Related pages

- [Rain Bird smart sprinkler controllers](https://smarthomecanon.com/lines/rain-bird-smart-sprinkler-controllers) (line)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)

## Sources

[^1]: ESP-ME3 Series Controllers - Rain Bird. https://www.rainbird.com/products/esp-me3-series-controllers (manufacturer, checked 2026-10-20)
[^2]: LNK2 WiFi Module Smart Home Integration - Rain Bird. https://www.rainbird.com/media/16585 (manufacturer, checked 2026-10-20)
[^3]: New Rain Bird ESP-ME3 controller offers enhanced versatility (2019-04-08). https://www.rainbird.com/corporate/press-releases/new-rain-bird-esp-me3-controller-offers-enhanced-versatility-unique (manufacturer, checked 2026-10-20)