Sonoff Dual R3 2 Channels Smart Home WiFi Mobile Remote Siri Voice Control On Off Switch

The Sonoff Dual R3 is a dual-channel WiFi smart switch module that enables remote control of two independent electrical circuits via smartphone application, web interface, or voice commands through Apple Siri integration. Professional electricians, home automation installers, and IoT developers utilize this device to retrofit existing electrical installations with smart control capabilities without requiring neutral wire connections. This product solves the critical challenge of adding remote switching functionality to standard wall switches while maintaining compatibility with legacy electrical infrastructure and providing seamless voice control integration.

Product Overview

The Sonoff Dual R3 operates on a 2.4GHz WiFi protocol with dual-channel relay architecture, allowing independent control of two separate loads up to 10A per channel with a maximum combined capacity of 20A at 250V AC. The device utilizes eWeLink cloud platform for remote access, enabling users to control connected circuits from anywhere globally through encrypted HTTPS connections. The integrated microprocessor manages real-time switching logic, scheduled automation, and voice command processing through Siri voice assistant on iOS devices, eliminating the need for additional hub or bridge components.

This model distinguishes itself through its compact DIN-rail mountable form factor, neutral-wire-free installation capability, and dual-channel independence that permits controlling two separate circuits simultaneously. The Sonoff Dual R3 incorporates advanced features including timer automation, scene creation, inching mode for momentary switching applications, and interlock function to prevent simultaneous activation of both channels. The device supports firmware updates over-the-air, ensuring compatibility with emerging smart home protocols and security patches without requiring physical access to the hardware.

Key Specifications

Specification	Details
Product Type	Dual Channel WiFi Smart Relay Switch Module
Brand	Sonoff by ITEAD
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp
WiFi Standard	IEEE 802.11 b/g/n 2.4GHz
Relay Capacity	10A per channel, 20A combined maximum
Operating Voltage	90-250V AC 50/60Hz
Power Consumption	Less than 2W in standby mode
Control Methods	eWeLink App, Web Dashboard, Siri Voice, Scheduled Automation, Manual Button
Mounting	DIN-rail 35mm standard mounting
Installation Type	Neutral wire optional

Key Features

• Dual-channel independent relay control enabling simultaneous switching of two separate electrical circuits with individual on/off status monitoring and real-time power consumption tracking
• Native Siri voice control integration for iOS devices allowing hands-free switching through natural language commands without requiring separate smart home hub or bridge equipment
• eWeLink mobile application with intuitive dashboard providing remote access from anywhere globally with encrypted cloud connectivity and multi-user account management capabilities
• Neutral wire optional installation design simplifying retrofit applications in existing electrical installations where neutral conductors are unavailable or inaccessible
• Advanced automation features including timer scheduling, scene creation for multi-device coordination, inching mode for momentary switching, and interlock function preventing simultaneous channel activation
• Over-the-air firmware updates ensuring continuous security patches, protocol compatibility improvements, and feature enhancements without requiring physical device access
• DIN-rail mounting standard 35mm profile enabling professional integration into electrical distribution panels and control cabinets with minimal space requirements
• Real-time status feedback and manual override button providing failsafe operation and manual control capability during network connectivity interruptions

Applications and Use Cases

• Residential smart home automation for controlling two separate lighting circuits or appliance groups with centralized smartphone control and voice command integration for enhanced convenience and energy management
• Commercial building automation enabling remote management of multiple independent loads such as HVAC systems, water heaters, and backup power circuits with scheduled operation and occupancy-based automation
• Industrial IoT applications for controlling two separate equipment circuits with real-time monitoring, predictive maintenance scheduling, and integration with building management systems through eWeLink API
• Retrofit smart control installation in older buildings where upgrading to smart switches is impractical, allowing existing wall switches to control remotely managed circuits without electrical rewiring
• Solar power system management enabling remote switching of battery charging circuits, inverter loads, and grid-tie functionality with time-based automation for optimized energy distribution
• Laboratory and testing environments requiring precise remote control of two independent electrical circuits with scheduled activation sequences and safety interlock functions preventing hazardous simultaneous operation

How to Use

Installation of the Sonoff Dual R3 requires mounting the device on a standard 35mm DIN-rail within your electrical distribution panel. Connect the input live conductor to the L terminal, connect neutral wire to the N terminal if available (neutral is optional), and connect the two independent load circuits to the OUT1 and OUT2 terminals respectively. Ensure all connections follow local electrical codes and are performed by qualified electricians. Power on the device and verify the LED indicator illuminates, confirming proper power supply connection and microprocessor initialization.

Download the eWeLink application on your iOS device and create an account if you do not have one. Press and hold the manual button on the device for 3-5 seconds until the WiFi LED blinks rapidly, indicating pairing mode activation. In the eWeLink app, select Add Device, choose Sonoff Dual R3, and enter your WiFi network credentials. The device will connect to your 2.4GHz WiFi network within 30 seconds. Once connected, you can control both channels independently through the app, create automation schedules, set up Siri voice commands through the Home app integration, and monitor real-time switching status. For voice control, add the device to Apple Home app, assign it to a room, and use Siri commands such as "Turn on Channel 1" or "Turn off the living room lights" for hands-free operation.

Frequently Asked Questions

Can the Sonoff Dual R3 work without a neutral wire connection?

Yes, the Sonoff Dual R3 is specifically designed with neutral wire optional capability. However, for optimal performance and to ensure proper relay operation across all load types, connecting the neutral wire is recommended. Without neutral connection, the device may experience reduced compatibility with certain load types or voltage instability. Always consult with a qualified electrician to determine if neutral wire is available in your installation location.

What is the maximum load capacity for each channel?

Each channel of the Sonoff Dual R3 can handle a maximum of 10 amperes at 250V AC. The combined maximum capacity of both channels is 20 amperes. If you need to control loads exceeding 10A per channel, you should use the relay output to trigger a larger contactor or relay rated for higher currents. Always verify your load specifications before installation to prevent relay damage and ensure safe operation.

Does the Sonoff Dual R3 require a separate smart home hub?

No, the Sonoff Dual R3 does not require a separate hub or bridge. It connects directly to your 2.4GHz WiFi network and communicates with the eWeLink cloud platform. However, for advanced features such as local network control without internet connectivity, you may optionally set up a Sonoff Bridge or use the eWeLink local control feature if your router supports it. Siri voice control integration works through the eWeLink app without requiring additional hardware.

Can I control the Sonoff Dual R3 when away from home?

Yes, the Sonoff Dual R3 provides full remote access through the eWeLink mobile application from anywhere globally with internet connectivity. Your device is registered to your eWeLink account in the cloud, allowing you to control both channels, view status, and receive notifications regardless of your physical location. All communication is encrypted using HTTPS protocol for security.

How do I set up Siri voice control?

To enable Siri voice control, you must add the Sonoff Dual R3 to Apple Home app. In the eWeLink app, go to device settings and select "Add to Home". Scan the HomeKit code from the device packaging or settings screen using Apple Home app. Once added, you can create custom names for each channel and use Siri commands like "Hey Siri, turn on Channel 1" or assign them to specific rooms for context-aware voice control.

What happens if my WiFi connection drops?

If your WiFi connection is interrupted, the Sonoff Dual R3 retains its last known state and will not automatically switch channels. However, the manual button on the device allows you to control both channels locally without WiFi connectivity. Once WiFi is restored, the device automatically reconnects to your network and synchronizes with the eWeLink cloud platform. You can then resume remote control through the mobile app.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

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