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20 Channel RS485 Relay Digital Analog Switch IO Module Modbus Rtu Plc Uart Expansion Board 4-20mA Current 0-10V Voltage Reading

USD 38.54USD 55.06

20 Channel RS485 Relay Digital Analog Switch IO Module Modbus Rtu Plc Uart Expansion Board 4-20mA Current 0-10V Voltage Reading

Description
Specification
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