1Stks NEU DC 5V 1 channel Optocoupler Relay Module Support high and low trigger
1,19 €
Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;. 1pcs 5V 1-Channel Relay Module with Optocoupler H/L Level Triger for Arduino. the module can be high or low by a jumper setting trigger;.
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