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Modbus RTU 4 Way Relay Module 4 Switch Volume Road Input 485 Communication
- Item No : 405225260689
- Condition : New
- Brand : Unbranded
- Seller : makeupdiarys6
- Current Bid : US $11.10
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* Item Description
- 1 X Modbus RTU 4 Way Relay Module. Relay communication: 485 communication in multi-unit network. IN1 - GND (default is high level, low level after switching on) computer sends instructions to read switch status.
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