8CH DC 5V 12V 24V RS485 RS232 (TTL) Modbus RTU Control Module Modbus Rtu Protocol AT Instruction Multifunctional Relay Board PLC

8CH DC 5V 12V 24V RS485 RS232 (TTL) Modbus RTU Control Module Modbus Rtu Protocol AT Instruction Multifunctional Relay Board PLC
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sku: 1005005121466891
$4.99
Shipping from: China
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