SONOFF DUALR3/DUALR3 Lite Dual Relay Two Way Power Metering Smart Switch


【Roller Shades Motor Control】Let your electric curtains, roller blinds, etc become smart immediately.
【External Switch Two-Way Control】DUALR3 has 6 types of external switch detection mechanisms, making it suitable for most physical switch control.
【Power Metering】The 2-Gang detects voltage, current, and power values and counts the power consumption for you independently to allow for reasonable energy consumption control.Not available for DUALR3 Lite.
【With The Most Features】DUALR3 has three working modes that meet the needs of different application scenarios. Remote, timing, voice control, smart scenes, and other functions are all available.
【Safe And Reliable】TUV, CE, FCC, and RoHS certifications ensure a safer and more reliable product.

Click to view the difference between DUALR3 and DUALR3 Lite

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Customer Service Guarantee

DIY Your Automated Motorized Facilities

DUALR3/DUALR3 Lite can operate as a smart control module for a 100-240V AC motor, like the tubular motor for bi-directional motorized curtains, blinds, roller shutters, awnings, etc.
Note: 1. DUALR3/DUALR3 Lite is applicable to four wires(GND, neutral, Forward, and Reverse) AC motors, like tubular motors.
2. The motor connected to DUALR3 needs a travel limited function, otherwise, it cannot be calibrated. Click this link to learn more.

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/DUALR3 Lite can help you easily realize, just connect it with your motorized curtain to enjoy your smart life. Creating an Astomsphere, Actually Simple

DUALR3/DUALR3 Lite works with other SONOFF products like L2. Just tell Siri and it wil automatically close the curtain for you to create a romantic atomosphere.
Note: Siri voice control is a shortcut of Siri in eWelink, DUALR3/DUALR3 Lite does not support Homekit temporarily.Power Metering Helps You to Save on Electricity Bills

Want to turn off in schedule to save electricity bills?Want to check the real-time power of the appliances?
Want to view historical consumption?
Now you can enjoy two independent channels with power metering in all of three working modes!
Double Two-Way Control of Lights

To control the lights via downstair or upstairs switch? DUALR3/DUALR3 Lite helps you! The working mechanism of DUALR3 allows you to achieve two-way control for two appliances respectively.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!

Overload Protection

Set the maximum and minimum values of voltage, current and power. Once the appliance is in abnor-mal working state, it will automatically cut off power for safety.Compatible with Your Existing Various Switch Types
Check out the differences between DUALR3 and DUALR3 Lite:

SONOFF DUALR3/DUALR3 Lite Dual Relay Module Wifi DIY MINI Switch Two Way Power Metering Smart Home 2 Gang/ Way Switch

SONOFF DUALR3/DUALR3 Lite takes your home to the next level. DUALR3/DUALR3 Lite is a flush-mounted Wi-Fi smart dual relay switch module that is installed behind any standard switch to transfer it into a smart switch for wireless remote control with mobile devices or voice command. Unifying your home appliances into an integrated wireless network to make them communicate with one another which is convenient for you to manage and control, including lights, home appliances and motorized facilities like roller shutters, window shades, blinds, awning, etc.
Three working modes available. DUALR3 comes with switch mode, motor mode and meter mode.One of the typical features is roller shutter and window shades smart control in the motor mode. The switch module offers the ultimate flexibility for your roller shutter and window shades by app remote control and scheduling timed events no matter whether you are home or away.

Double two-way control. The double relay switch module distributes the load to two inputs compared to the simple relay, which this working mechanism lets you have two-way control for two devices independently.



Additional information

Weight N/A
Dimensions N/A

Product Type

Dual Relay Two Way Power Metering Smart Switch

Power Supply

Power Supply

Resistive Load

3300W/15A/Total, 2200W/10A/Gang

Motor Load


Max Power

3300W(total) / 2200W(1 gang)

Product Dimensions





802.11 b/g/n

Security Mechanism



5%-95%RH, Non-condensing

Enclosure Material

Fire-retardant PC V0

Operating Temperature


Switch Channel


Certified Compliance


Works With




Customer Reviews

Based on 11 reviews
Fuad Valiyev
Very cool equipment

I really liked this switch. Connected easily and no problems. Thanks to the manufacturer. Delivery was very fast.

Alan P.
Product with value

Got more than 10 units.
1. One unit did not work.
2. The rest are working perfect!
3. The units will not enter to Gewiss wall box, I needed to unpack the plastic box and just to locate the PCBA module inside the wall switch box.

Abdullateef Alkhubaizi
Sonoff dual 3

It sounds good...

Gaetano DiZanni excellent!!
Sonoff Dualr3


Matthijs Mutsaars
Device works great, but to big

The device arrived and works great it's just to big to put behind a wall switch. I could not get it in the wall with regular switches in front.

We are sorry to hear that, our customer service team will contact you later.

Hanna Murad
Great but

Its a great product but i wish that we can control it from the google home app not only voice

harel z

Works like a charm!
When will you have the zigbee version released?

Rodrigo hidalgo
No funcionan.

Entre envío y aduana, pague 89,00€.
Y no funcionan.
No me Dan opciones para proceder a la devolución.

Disculpe las molestias, nuestro servicio de atención al cliente se comunicará con usted para ayudarlo a resolver este problema.

Angelo Mannavola
Not received!

I didn't received anything.
35 days waiting this package.
Customer support doesen't solve the problem!
So, I started the refund procedure with paypall
I will NEVER buy from ITEAD again!!


Ottima soluzione per controllare le tapparelle in modo classico con pulsanti e anche da remoto con alexa e google asistent, facile da installare e da configurare.... l'unico difetto è la percentuale di chiusura della taparella dovuta alla calibrazione in base al tempo... 50% per l'apparecchio corrisponde a circa 70% chissà fisicamente... in resto prodotto di ottima qualità, arrivato in tempo brevi...

SONOFF DUALR3/DUALR3 Lite Dual Relay Two Way Power Metering Smart Switch
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