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R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board for PLC LED Home Automation Door Lock

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sku: 4000317900839

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$39.64

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R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board for PLC LED Home Automation Door Lock

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