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Tuya WiFi Smart Switch Module 4 Channels 85-250V WIfi Relay DIN Rail RF433 Remote Control Works with Alexa Google Zigbee Hub - AliExpress
Shelly Plus 1 Mini WiFi & Bluetooth based Flush mount Relay with 1 ch
Shelly Pro 2PM Circuit DIN Rail Wi-fi Relay Switch With Power Metering - AV Mart Australia
PLC Arduino Ardbox 20 I/Os Relay HF Modbus & WiFi & Bluetooth LE
Wi-Fi 1/16 DIN PID Temperature Controller (For Relay) [AW-SYL-2342] - $99.99 : Auber Instruments, Inc., Temperature control solutions for home and industry
Amazon.com: Shelly Pro 2 | Wi-Fi, LAN & Bluetooth 2 Channel Smart Relay | Home & Facility Automation | Compatible with Alexa & Google Home | iOS Android App | Lights Automation