5V 12V Computer USB Control Delay Switch Drive-free Relay Module 2/4/8 Channel
ab 8,66 €
1 2/4/8 Channles 5V / 12V Relay Module. Using the dedicated relay driver chip ULN2803, the relay works more stably. Square USB interface, stable connection. 45 In 1 Sensor. Wiring: NC/COM/NO. Battery Protection Board.
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