DC 5V/9V/12V/24V 1 Channel Optocoupler Relay Module Support High and Low trigger
ab 1,29 €
2, Using SMD optocoupler isolation, driving ability, stable performance ; trigger current 5mA;. 1 x Relay Module with Optocoupler. High and low trigger selection ends 2 When the jumper is high with high short trigger.
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