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SONOFF 4CH Pro R3 Wi-Fi Smart Switch 4-Channel Din Rail Mounting Home Automation,Self-Locking/Interlock Control Home Appliances, RF/APP/Voice/LAN Control, Works with Alexa(1 Pack): Amazon.com: Tools & Home Improvement
Sonoff Basic R2/RF R2 DIY Wifi Smart Switch Wireless Remote Control Smart Home Automation Module Via Ewelink APP Work with Alexa - AliExpress