# SONOFF POW Ring POWCT

*SONOFF / POWCT*

> The SONOFF POW Ring POWCT is a Wi-Fi power meter with a split-core clamp that measures circuits up to 100 A in both directions and has no relay. It runs from the eWeLink app and reaches Matter platforms through an eWeLink CUBE OS bridge. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users through an integration (a Matter bridge).

- Canonical page: https://smarthomecanon.com/devices/sonoff-pow-ring
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SONOFF](https://smarthomecanon.com/brands/sonoff) |
| Category | Energy meter |
| Model numbers | POWCT |
| Status | Current[^1] |
| Type | Clamp power meter (no switch)[^1] |
| Radio | Wi-Fi 2.4 GHz[^1] |
| Channels | None (meter only)[^1] |
| Rated load | CT clamp 0-100 A[^1] |
| Energy monitoring | Yes, bidirectional[^1] |

## Integration paths

**How the SONOFF POW Ring POWCT connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | eWeLink CUBE OS Matter bridge[^1] | Yes[^1] | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | eWeLink app[^1] | unknown | unknown |

**Platform support for the SONOFF POW Ring POWCT**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Via integration[^1] |  |
| Matter via Bridge | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |
| Matter via Bridge | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Matter via Bridge | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Matter via Bridge | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] |  |
| Wi-Fi cloud | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | AlexxIT/SonoffLAN |

## Related pages

- [SONOFF Wi-Fi switches and power meters](https://smarthomecanon.com/lines/sonoff-wifi-switches-and-meters) (line)
- [SONOFF](https://smarthomecanon.com/brands/sonoff) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: SONOFF store: SONOFF POW Ring Smart Power Meter | POWCT. https://sonoff.tech/products/sonoff-pow-ring-smart-power-meter-powct (manufacturer, checked 2026-10-13)