Sonoff 4CH Pro & Pro R2 Smart Wifi Switch Home 433MHz RF Wifi Light Switch 4 Gang 3 Working Modes Inching Interlock With Alexa|Smart Remote Control| - AliExpress
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Sonoff 4CH Pro R2 Smart Google Home RF Wifi Light Switch 4 Gang 3 Working Modes Inching Interlock Wifi Switch Work With Alexa _ - AliExpress Mobile
First App-free, voice pairing eWeLink Support Zigbee OnOff Controller Now available – eWeLink Help Center
Sonoff 4CH Pro R2 Smart Google Home RF Wifi Light Switch 4 Gang 3 Working Modes Inching Interlock Wifi Switch Work With Alexa _ - AliExpress Mobile
Ewelink Device Database
Sonoff 4CH Pro & Pro R2 Smart Wifi Switch Home 433MHz RF Wifi Light Switch 4 Gang 3 Working Modes Inching Interlock With Alexa|Smart Remote Control| - AliExpress
Sonoff 4ch Pro - only Ch1 responds to switch settings · Issue #5 · RavenSystem/esp-homekit-devices · GitHub