Sonoff
Sonoff DUALR3 Dual Relay Smart Switch
Two independent smart relays in one tiny module - control two lights, or run motorized curtains/blinds with proper open/stop/close · Live power monitoring per channel · Wi-Fi
Control two lights or motorized curtains from one smart switch hidden behind your wall - works from your phone even during power cuts.
Sonoff
WiFi
Mains AC (220V)
2.4 GHz
eWeLink
14 $
Cash on deliveryWhish is also available.
Price depends on bundle selected below
Two lights, or one motorized curtain?
14 $
Single DUALR3
1× Sonoff DUALR3 Dual Relay
One module - handles either two lights or one motorized curtain/blind/shutter.
Most popular
2 independent channels in one module
Motor mode for curtains/blinds/shutters
Power monitoring per channel
Fits behind standard wall switches
28 $
Two DUALR3s (two-curtain home)
2× Sonoff DUALR3 Dual Relay
Two modules - one for the living room curtain and one for the bedroom. Each opens at sunrise, closes at sunset, on its own schedule.
Curtain pair
Two motorized curtains automated
Independent schedules per room
Group both in one eWeLink scene
Auto open/close on sunset
56 $
Whole-Apartment 4-Pack
4× Sonoff DUALR3 Dual Relay
Four modules - the typical full-apartment order: living room plus three bedrooms, lights or curtains on every one.
Average order is 4
Our average DUALR3 order is 4 modules
Mix lights + curtains per room
Power monitoring on every channel
One eWeLink home controls all four
In Stock
Order now - get it by mon 3 aug with standard delivery
Best fitted by an electrician - we can arrange installation.
Not sure it fits your setup? Ask us on WhatsApp before you buy.
Built for Lebanon's power reality
After an EDL cut: the device reconnects to Wi-Fi on its own when power returns, and the app's Power-On State setting lets you choose whether it comes back ON, OFF, or exactly as it was.
EDL + generator homes: the switchover is just a normal power cycle to the device - no resetting or re-pairing needed.
No neutral wire in the wall box? Common in older Lebanese buildings - use the Sonoff ZBMINIL2, which works without one. Your electrician can confirm in minutes on WhatsApp.
Delivery all over Lebanon
6-month Warranty
WhatsApp Support
14-day Exchange on unopened items
Sonoff products customers bought together
Sonoff DUALR3 Dual Relay Smart Switch
This item
1 add-on selected · 18 $
How It Works
1
Cut the breaker, open the wall box
Power off the circuit. Pull out your existing switch - DUALR3 will sit behind it inside the back-box.
2
Wire in two loads (or one motor)
For two lights: connect each load to its own output. For a motor: connect the two motor wires to the two outputs and switch to Motor Mode in the app.
3
Pair in eWeLink
Power on, open eWeLink → Add Device → scan QR. Two channels appear in the app, each named separately.
4
Set scenes + power-on state
Group both channels with other Sonoff devices in scenes. Set Power-on State to "Last State" so EDL cuts don't break automations.
Is This Right for Me?
Channels: 2 independent relays
Motor mode: Yes - proper open/close/stop for curtains, blinds, shutters
Power monitoring: Real-time watts/volts/amps per channel
Voltage: 100-240V AC, 50/60 Hz
External switch support: Toggle, push-button, rocker
Wi-Fi: 2.4 GHz only
App: eWeLink
Product Details
Sonoff DUALR3 – Dual Relay Smart Switch
The Sonoff DUALR3 is a compact smart switch that installs behind your existing wall switch and gives you two independent channels to control. Use it to control two separate lights, or switch it to roller shutter mode to control motorized curtains, blinds, or shutters.
It also tracks power consumption on both channels, so you can see how much electricity each circuit is using.
Key Features:
- 2 Independent Channels: Control two lights or devices separately from one module.
- Roller Shutter Mode: Switch to motor mode to control motorized curtains, blinds, or shutters – with open/close/stop control.
- Power Monitoring: Track real-time power usage on each channel.
- Fits Behind Your Wall Switch: Small enough to fit inside a Lebanese standard wall box.
- Works with External Switches: Compatible with toggle, push-button, and rocker switches.
- Voice Control: Works with Google Assistant and Alexa.
💡 Pro Tip: If you have motorized curtains or roller shutters, this is one of the most affordable ways to make them smart – control them from your phone or set a schedule to open at sunrise and close at sunset.
What You Get
Proper motor mode for curtains
Roller-shutter mode gives true open/close/stop control - not just on/off. Interlock prevents both channels firing at once.
Two lights in one box
Control two separate circuits independently. Useful for double wall switches without buying two modules.
Live power monitoring
See real-time watts, volts, and amps per channel in eWeLink. Spot which device is eating your bill.
Compact
Tucks behind standard Lebanese wall switches. No new wall plate, no visible hardware.
Voice + sunrise schedules
Alexa and Google. Plus auto-open at sunrise, auto-close at sunset - set once, forget.
A Closer Look
External Switch Two-Way Control
Schedule to Open and Close for Comfortable Life
Want to be awakened with the first ray of sunlight in the morining or adjust the percentage of curtain opening to avoid the light ruins you furniture? DUALR3 can help you easily realize, just connect it with your motorized curtain to enjoy your smart life.
Keep Your Appliances always Be On-Meter Mode
DUALR3 has a special working mode called meter mode. In this mode, the electrical appliance loads of DUALR3 will always remain on, the relay state will not be changed by APP or external switches, Only focusing on power monitoring and metering!
Multiple Control Methods
DUALR3 can be used as eWeLink-Remote gateways, S-MATE can act as remote controllers, and they can be controlled locally through eWeLink-Remote signals by creating smart scenes.
Common Use Cases (4)
Real scenarios Lebanese customers use this product for. Don't see yours? Message us and we'll tell you if it fits.
Smart Switch
keep your old switch but control it from your phone - no rewiring needed.
See 10 products
Smart Lights
turn your lights on or off from your phone - no need to get up.
See 28 products
Shutter App
open or close your roller shutters from your phone - no need to get up.
See 6 products
Power Source
check from your phone whether you're running on EDL or generator - always know what's powering your home.
See 1 product
Works With
Amazon Alexa
Works
Google Assistant
Works
eWeLink-Remote (LAN control)
Works
eWeLink Scenes
Works
Sonoff NSPanel Pro
Works
Control with the eWeLink app
eWeLink
Set up your Sonoff DUALR3 Dual Relay Smart Switch in minutes - voice control, scenes, automations, away mode.
App Store
Google Play
What's in the Box
1× Sonoff DUALR3 module
User manual
Delivery & Pickup
Standard Delivery
All Lebanon governorates - Greater Beirut usually next day; Tripoli, Jbeil, Saida, Tyre, Zahle, Akkar and the rest within 2–4 working days.
4 $ · Free over 50 $
Express Delivery
Faster shipping - usually within 24 hours of order confirmation (Greater Beirut & Metn). Same-day not guaranteed.
6 $ flat
Pickup - Dekwaneh
Collect from our Dekwaneh store. Weekdays 10am–5pm, Sat 10am–1pm.
3 $ · Free over 30 $
Warranty & Support
6-month Local Warranty
Covers defects in materials & workmanship. Handled here in Lebanon.
WhatsApp Support - Always On
Can't set it up? Message us. We reply within minutes, not days.
14-day Exchange - Unopened Items
The item must be unopened and in its original packaging. Exchange it for a product of equal or higher value - we do not give cash refunds. Opened items are covered by the warranty if there is a factory defect.
Free Setup Call
If you get stuck, we'll walk you through the setup on a free WhatsApp call.
Frequently Asked Questions
Will it work with my existing wall switch?
›
Yes - DUALR3 sits behind your existing wall switch and works with toggle, push-button, or rocker switches. Keeps your current wall plate.
Can I use it for motorized curtains?
›
Yes - switch the device to Motor Mode in eWeLink and the two channels become a proper open/close/stop pair. It interlocks the relays so they never fire at the same time, which would damage the motor.
Does it work with the eWeLink app?
›
Yes - eWeLink is Sonoff's native app. DUALR3 lives in the same dashboard as your other Sonoff devices.
Can I control it from my phone without a wall switch wired in?
›
Yes - you can run it purely as a smart relay with no external switch. Useful for installations like a dedicated curtain motor or a hidden circuit.
What about power monitoring?
›
Built in - see live watts, volts, and amps for each of the 2 channels separately in the app. Useful for figuring out which circuit is your power-hungry one.
Will it fit my Lebanese wall box?
›
Yes - DUALR3 is designed compact enough to fit behind standard Lebanese back-boxes. If the box is unusually shallow, do a dry fit before screwing the plate back on.
What happens during an EDL cut?
›
Set Power-on State to "Last State" in eWeLink - when EDL returns, both channels go back to exactly the state they were in before the cut. Wi-Fi reconnects automatically once your router is back online.
Compare Models
Still deciding?
Message us on WhatsApp - we'll tell you honestly if this is the right fit for your home.