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Modbus-Rtu 4 Way 12V Relay Module Switch 4 Way Relay Output RS485 Communication
- Item No : 405343582066
- Condition : New
- Brand : Unbranded
- Seller : makeupdiarys6
- Current Bid : US $9.64
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* Item Description
- 1 X Modbus RTU 4 Way Relay Module. IN1 - GND (default is high level, low level after switching on) computer sends instructions to read switch status. IN2 - GND (default is high level, low level after switching on) computer sends instructions to read switch status.
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