2 In 1 RS485 RS232(TTL) PLC Modbus RTU Module IO Control Switch Board For Relay Industrial Automation Door Lock DC Motor

2 In 1 RS485 RS232(TTL) PLC Modbus RTU Module IO Control Switch Board For Relay Industrial Automation Door Lock DC Motor
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sku: 1005005499171344
$4.60
Shipping from: China
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