WiFi Relay Module Wireless Relay WiFi Relay Module Phone APP Remote Control Switch for Smart Home Automation System 5V ESP8266

Specification: Item Type: WiFi Relay Module Board Size: Approx. 45 x 28mm / 1.8 x 1.1in Board Function Description: IN+, IN-: 5V power input TX, RX,

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esp8266 5v wifi relay module remote