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Sonoff 4CH R3 4-gang WiFi Smart Switch

Independently/Mutual Control 4 Devices】Turn on/off the 4 connected devices separately in self-locking mode. Turn on 1 device but turn off the other 3 devices at the same time in interlock mode. Turn on the connected devices but automatically switch off after 0.5-3600s later in inching mode.
【[Dry Contact】If your device does not need to be powered through the output of the 4CHPROR3, but only needs to use it as a smart switch to control the line on and off, the 4CHPROR3 is your best choice.
【With 433MHz RF Control】Use your common 433MHz remote control to turn on/off the device without internet.
【Easy To Out-of-Reach Devices】Mounted on the guide rail, convenient to connect and control devices far from the switch.
【Works With Alexa & Google Assistant & SmartThings & Alice】You can directly ask Amazon Echo/Echo Dot/Amazon Tap, Google Home to turn on/off your SONOFF devices.

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SONOFF 4CHR3 & 4CHPROR3 are both 4-gang 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.

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.

Weight 0.24 kg


4CHPROR3 Max. Load

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

4CHR3 Max. Load

10A/2200W/Gang 16A/3500W/Total

Wireless Frequency

WiFi 2.4GHz

Wireless Standard

IEEE802.11 b/g/n 2.4GHz(2400M-2483.5M)

Security Mechanism


Enclosure Material


Switch Channel


Operating Temperature


Certified Compliance


Works With

Amazon Alexa, Google Assistant, Samsung Smarthings, Yandex Alice




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