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TSRW430- 4 Channel WiFi Smartphone Controlled 30A Relay Board with Enclosure
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DC 5V 12V 24V 2 Channel 30A High And Low Level Trigger Relay Module PLC Automatic Control Module
High Power Relay Module 12V 30A - ElectroDragon
DC 5V 7- 80V 30A ESP8266 WIFI 1/2 Channel Relay Module ESP-12F Development Board | eBay
