Modbus-Rtu 4 Way 12V Relay Module Switch 4 Way Relay Output RS485 Communication
11,08 €
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.
Jetzt bei Ebay:
