Sonoff Dual R3: Versatile Dual Relay Smart Switch for Advanced Home Automation
The Sonoff Dual R3 is a powerful dual-channel WiFi smart switch designed to bring intelligent control and energy monitoring to your home. Whether you’re automating lights, appliances, or motorized curtains, the Dual R3 offers flexible modes, real-time power tracking, and seamless integration with other smart devices—making it a cornerstone for building a truly responsive smart home.
Key Features
- Dual-Channel Control
Independently control two electrical loads (up to 2200W per channel) via app, voice, or automation. Ideal for managing lights, ceiling fans, coffee machines, and more. - Motor Mode for Smart Curtains & Blinds
Switch to motor mode to control bidirectional motors—perfect for automating roller shutters, window shades, and curtain tracks. - Power Metering (Standard Model)
Monitor voltage, current, and power consumption per channel in real time. Great for tracking energy usage and optimizing efficiency. - Two-Way Switch Compatibility
Supports six types of external switch detection (rocker, momentary, SPDT, etc.), allowing you to retain manual wall switch control while adding smart functionality. - Compact DIN Rail Design
Small enough to fit behind wall switches or inside distribution boxes, with standard 35mm DIN rail mounting support. - Certified Safety & Reliability
TÜV, CE, FCC, and RoHS certified for safe operation and long-term durability.
Technical Specifications
| Specification | Details |
|---|---|
| Max Load (Total) | 3300W / 15A |
| Max Load (Per Channel) | 2200W / 10A |
| Motor Load | 10–240W / 1A |
| Wireless Protocol | WiFi 802.11 b/g/n (2.4GHz) |
| Operating Temp | -10°C to +40°C |
| Humidity Range | 5%–95% RH (non-condensing) |
| Dimensions | 54 × 49 × 24 mm |
| App Support | eWeLink (iOS/Android) |
| Voice Assistant Support | Amazon Alexa, Google Assistant |
| Certifications | TÜV, CE, FCC, RoHS |
Use Cases & Applications
- Lighting Automation
Control two separate lighting circuits remotely or via voice. Create schedules, scenes, or trigger lights based on motion or time. - Appliance Control
Manage devices like water heaters, fans, or coffee makers with energy monitoring and smart scheduling. - Smart Curtain Control
Use motor mode to automate curtain opening/closing based on sunrise, temperature, or occupancy. - Energy Management
Track power consumption per channel and receive alerts when usage exceeds thresholds. - Two-Way Switch Upgrade
Retrofit traditional wall switches with smart control while maintaining manual operation.
Smart Home Integration
The Sonoff Dual R3 works seamlessly with other eWeLink-compatible devices, allowing you to build complex automation scenes:
- Link with Motion Sensors
Turn on lights or appliances when movement is detected. - Pair with Temperature Sensors
Activate fans or heaters when room temperature crosses set limits. - Trigger Scenes with Door/Window Sensors
Automatically open blinds or turn off lights when doors are opened or closed. - Voice Control via Alexa or Google Assistant
Use simple voice commands to control devices or check power usage.
Why Choose Sonoff Dual R3?
The Dual R3 is more than just a switch—it’s a smart automation hub. With dual-channel control, motor support, energy metering, and wide compatibility, it’s perfect for homeowners, electricians, and automation enthusiasts looking to upgrade their space with intelligent control and real-time insights.
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