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AC110/220V to DC24V 70W 3A Switching Power Supply Board Isolated Power Module

Dual Modbus-Rtu 2-way Relay Module Switch Input and Output RS485/TTL Communication Controller

Modbus RTU 7-24V Relay Module RS485/TTL 1-way Input and Output with Anti-reverse Protection

AC0-250V Ewelink WiFi Remote Intelligent Relay Module Motor Forward and Reverse Controller Support Phone Remote Control