1/2/4/6/8 Channel 5V Relay Board Module Optocoupler LED for Arduino PiC ARM AVR
ab 1,03 €
1 CH Without Optocoupler(Black). 1 CH Without Optocoupler(Blue). with large current. The use of the industry's top quality optocoupler isolation, strong anti-interference ability, stable. 2 CH With Optocoupler(Black).
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