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Relay module, 32 channels RS485 relay card R421C32 DC12V control module for serial interface switch with six operating modes for self-lock delay when opening and closing : Amazon.de: DIY & Tools
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dS2824, dScript programmierbares Ethernet Modul mit 24 Relais & 8 I/Os
DC 12V 24V 32 Kanäle Modbus RTU RS485 Bus Relais Modul UART Serial port DIN35 Schiene Board für PLC LED Home automation türschloss - AliExpress Heimwerkerbedarf
32 Channel Ethernet Relay Module With GPIO | Numato Lab
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