SAVFY 4 Channel 5V Relay Shield Module Board Optocoupler module for Arduino ARM AVR CN
คุณสมบัติเด่น / รายละเอียดสินค้า:
High quality 5v relay.
Have relay status indicator led.
Easy to use, simple 3 line structure.
It is also able to control various appliances and other equipments with large current.
Widely used for all MCU control, industrial sector, PLC control, smart home control.
