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12-DI 12-DO DC 12V 24V RS485 IO Board Optically Isolated NPN Input &amp 12 Relay Output Modbus RTU Board

USD 20.83USD 21.93

12-DI 12-DO DC 12V 24V RS485 IO Board Optically Isolated NPN Input &amp 12 Relay Output Modbus RTU Board

Description
Specification
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