1pc 4 Channel Relay Module Board STM8S103F3 Microcontroller RS485 Communication

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1pc 4 Channel Relay Module Board STM8S103F3 Microcontroller RS485 Communication

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Amazon 4 channel relay output (a normally open, normally closed). 4 channel optical coupling isolation. 4 relay closed the LED light. Circular DC interface, and DC terminal interface. Convenient power connection (12 v power supply voltage). 4 channel input interface.

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£ 10.18

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Description (1)

4 channel relay output (a normally open, normally closed). 4 channel optical coupling isolation. 4 relay closed the LED light. Circular DC interface, and DC terminal interface. Convenient power connection (12 v power supply voltage). 4 channel input interface.