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Itead SONOFF 4CH R3/ 4CH PRO R3 Wifi Switch Module 4 Gang Wi-Fi DIY Smart Switch APP Voice Control Smart Home Works With Alexa

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Itead SONOFF 4CH R3/ 4CH PRO R3 Wifi Switch Module 4 Gang Wi-Fi DIY Smart Switch APP Voice Control Smart Home Works With Alexa

SONOFF 4CHR3 & 4CHPROR3 are both 4-gang DIY Wi-Fi Smart Switches designed to give you the ability to integrate smart control into your existing home to enable a smart home. Each smart switch has 4 gangs that can be used to control lights and other home appliances at the same time in four areas of your home. There is a major difference between 4CHR3 and 4CHPROR3, which is 4CHPROR3 is designed with an additional function for RF control. The function is purposely adopted to make you turn on/off the device connected with 4CHPROR3 via the RM433 remote controller.

Actually, SONOFF has ever released two types of 4-gang smart switch (4CHR2 and 4CHPROR2.) which comes with almost same functions with 4CHR3 and 4CHPROR3. But all the above units are still different in 3 working modes including self-locking, interlock and inching mode. The new improvement on 4CHR3 and 4CHPROR3 compared with 4CHPR2 and 4CHPROR2 is for users to set these 3 working modes on eWeLink APP instead of the hardware itself, easier to operate. So you can enable self-locking mode to turn on/off 4 connected devices separately, interlock mode to turn on 1 connected device every time and turn off the rest of devices simultaneously and inching mode to turn on 1 connected device and then make it turn off automatically after a given time (0.5 – 3600s). For the device away from the switch, you can create a moveable space in virtue of a DIN rail to make them be connected. Simply activate devices through your voice when the switch works with Alexa and Google Home smart assistant.

Quick to Access 3 Working Modes

Compared with 4CH ProR2, you can access self-locking, interlock and inching mode on APP directly.

Run 4 Devices Sparately – Self-locking Mode

Allow you to turn on or off 4 connected lights independently

Automate More Devices- Interlock Mode

One channel controls one work status, enable interlock to turn on 1 channel and turn off other channel simultaneously.

Keeps On for A While, Then Turns Off Automatically -Inching Mode

Don’t Want to stiffly fumble in the dark for the way? Enable inching mode to set a “on” schedule for your corridor light, and it will automatically turn off after reaching the preset time

Voice Controls Your Home

Compatible with Alexa and Google Home.Wanna turn off the light immediately? Just tell it to do.

Easy to Out-of-Reach Devices

Mounted on the guide rail, convenient to connect and control devices far from the switch

Security Comes Before Everything

The durable flame-retardant PC shell provides the maximum safety for connected devices in use.


Remotely control connected lights or devices via APP
3 working modes with self-locking, interlock and inching mode for even remote control garage door and roller blinds
Support scheduling a timer to make devices automatically start and stop to work
Customize smart scenes to make the device connected with the switch to trigger other devices
Share the control permission of devices to other accounts to control together
Check real-time ON/OFF status of devices on your mobile phone
Power on state allows users to set the On/Off/Keep status for the connected device before power failure and ensure it remains the arranged status after power restoration


Voltage Range: 100-240V AC 50/60Hz(DC: 9-23V)
Max. Load: 10A/2200W/Gang 40A/8800W/Total
Wireless Frequency: WiFi 2.4GHz
Wireless Standard: IEEE802.11 b/g/n 2.4GHz2.4GHz(2400M-2483.5M);
Security Mechanism: WPA/WPA2
Enclosure Material: PCV0
Gang: 4
Dimension:145*90*34 (mm)
Operating Temperature(recommended): -10ºC-40ºC(14°F-104°F)
Operating Humidity: 5%-95%RH, Non-condensing

Brand Name




State of Assembly


Model Number



All Compatible

Camera Equipped



SONOFF 4CH PRO R3 4 Gang Wifi Switch



Max. Load

10A/2200W/Gang 40A/8800W/Total


4 gang


APP Remote Control; Timer; IFTTT

Voltage Range

100-240V AC 50/60Hz(DC: 9-23V)

Product Dimensions

145*90*34 (mm)

Supports APP

eWeLink IOS Android


Original SONOFF Factory


WiFi 2.4GHz

Supports Function

Works with Alexa & Google Home, IFTTT

Working Mode

Inching Interlock Self-locking Modes


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