DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Supo

DC+: Anschluss an Positiv (entsprechend dem Relais-Spannungsbereich). DC-: Anschluss an Power NegativeIN: Relaismodul Trigger Pin (Hoch- oder Niedrigstufe Trigger optional). This 12V Relay Module is 4 Channel Isolated, Each Relay Can Individually Switch On/Off By An Opto-Isolated Digital Input.

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