Description
Sonoff Dual R3 WiFi smart relay, 2 channels, roller shutter control, energy monitoring, white
Sonoff Dual R3 is a WiFi smart relay with 2 independent channels, an energy consumption monitoring function and support for controlling motors for roller shutters, blinds or electric curtains. It mounts easily in a wall box and offers full control from the eWeLink app.
3 operating modes
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Switch mode – you control two ON/OFF devices independently
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Motor mode – you control bidirectional motors for roller shutters, blinds or curtains
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Metering mode (Meter mode) – you monitor energy consumption on each channel
Remote control via eWeLink
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On/off from the app (Android/iOS)
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Scheduled automations and custom scenes
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Voice control via Amazon Alexa and Google Assistant
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Control sharing function with other users
Smart automation and real-time feedback
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You can set intermediate positions for roller shutters (e.g.: 30%, 50%, 70%)
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The app shows the exact status of each channel and the opening level of the roller shutters
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Automatic calibration function for precise motor control
Energy consumption monitoring
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Measures active power, voltage and current in real time
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Monitors cumulative consumption of energy
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Access to history for consumption analysis and optimisation
Wall box mounting
Compact design, perfect for mounting behind a switch or socket – ideal for discreetly upgrading the electrical installation.
Safety and reliability
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Housing resistant to high temperatures (PC V0)
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Overvoltage and overcurrent protection
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Stable operation on a WiFi 2.4 GHz network
Practical use cases
- Used to control a garage door or an electric roller shutter, with open/close commands directly from the app.
- Mounted in an electrical panel to independently control several circuits (lights, sockets, equipment) from a single app.
- Integrated with an existing physical button to keep manual control, in parallel with scheduled smart automations.
Technical specifications:
| Model | DUAL R3 |
| Protocol | WiFi 2.4 GHz, IEEE 802.11 b/g/n |
| Supply voltage | 100–240V AC, 50/60Hz |
| Maximum load | 10A per channel, 15A total |
| Resistive load | 2200W/10A per channel, 3300W/15A total |
| Motor load | 10-240W / 1A |
| Energy monitoring | Yes (power, current, voltage) |
| Roller shutter/blind mode | Da |
| External switches | compatible with 6 types |
| Compatibility | eWeLink, Amazon Alexa, Google Assistant |
| Dimensions | 54 × 49 × 24 mm |
| Housing material | PC V0 (flame-retardant) |
| Mounting | In a wall box, behind switches |
Control two circuits, manage electric roller shutters and monitor energy consumption with a single device: Sonoff Dual R3 – the complete solution for a smart and efficient home!
DUAL R3 is the ideal choice for anyone who needs smart control of several circuits at the same time, from roller shutters and electric gates to zoned lighting.
