The Sonoff 4CH Pro R3 is a Wi-Fi and RF-enabled smart switch with four independent channels, allowing users to control multiple devices via app, RF remote, or voice. It supports interlock, inching, and self-locking modes, making it versatile for motorized systems, lighting zones, and timed operations.
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This module connects to 2.4GHz Wi-Fi and pairs with 433MHz RF remotes, offering flexible control options. Each of the four channels can be operated independently, and users can configure modes to suit different applications:
Self-locking mode: Each channel toggles on/off independently
Interlock mode: Only one channel can be active at a time—ideal for motor control
Inching mode: Channels turn off automatically after a set time—useful for gates or garage doors
The 4CH Pro R3 supports DIN rail mounting, making it easy to install in distribution boards. It integrates with the eWeLink app, Alexa, Google Assistant, and SmartThings, enabling remote control, voice activation, and scene automation.
It also includes manual control buttons on the device, allowing local operation without internet. The RF functionality adds convenience for users who prefer physical remotes or need control in areas without Wi-Fi.
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