1-10pcs 12V 1Channel Module High/low level trigger Relay Module with Optocoupler
ab 4,23 €
2, using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;. 6, the power indicator (green), relay status indicator (red). 1, NO: normally open relay interface, the relay before the vacant after the pull shorted with COM.
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