Sonoff 4CH R3 – Smart Wi-Fi Switch (4 Channels)
Control up to 4 household appliances or electronic devices independently with a single smart switch. The Sonoff 4CH R3 offers three operating modes—inching, self-locking, and interlocking—making it ideal for controlling everything from lights and fans to garage doors and roller shutters.

With the Smart Life / eWeLink app, you can:

• Schedule timers (single, repetitive, or countdown) for automatic control.

• Check real-time device status directly on your phone.

• Create smart scenes that link with other devices for automation.

• Share access with family members for easy multi-user control.

It also includes a Power-On Status feature, letting you decide whether devices should stay ON, OFF, or unchanged after a power outage—ensuring safety and consistency.

📶 Note: Requires a 2.4GHz Wi-Fi connection (not compatible with 5GHz).

About this item

• 【Independently Control 4 Devices】Just need a Sonoff 4CH R3 which can allow you to connect and control 4 household appliances and electronic devices independently.
• 【Adds Interlocking Mode】Compared with 4CH R2, 4CH R3 adds interlock mode that allows you to control your garage door or roller shutters with the 4CH R3 4-Gangs Wi-Fi Smart Switch. 3 operating modes with inching, self-locking and interlocking.
• 【Set schedules for automatic control】It has single/repetitive/countdown timers that you can use to automatically turn on/off household appliances.
• 【Powerful Functions】Customize smart scenes to make the device connected with the switch to trigger other devices. Share device control permission with other accounts to control them together. Check the real-time on/off status of devices on your mobile phone.
• 【Power On Status】Power on state allows users to set the ON/OFF/KEEP status of the connected device before a power failure and ensure that it remains the arranged state after power restoration. Router must be 2.4GHz (5.0GHz WiFi is not supported)