Sonoff DUAL R3 Two-Channel Wi-Fi Smart Relay with Power Metering

The Sonoff DUAL R3 is a compact two-channel Wi-Fi relay that installs behind an existing wall switch, turning it into a smart switch without changing the faceplate. It suits homes where you want app and voice control but prefer to keep your current switches.

Each channel controls a separate load, such as two light circuits, and the module meters power so you can see consumption in the eWeLink app. It can also drive motorised roller shutters, window shades, blinds, and awnings.

It works with the eWeLink app, Amazon Alexa, and Google Assistant, so lights and appliances can be scheduled, grouped into scenes, and switched by voice.

The module sits in the switch box or ceiling rose and needs a neutral connection. We wire it behind your switches, set up the eWeLink app, and label each channel.