4 Kanal 3V Relaismodul Relais Erweiterungsplatine mit Optokoppler Trennung
11,91 €
Strong anti-interference ability, with photoelectric isolation;. 1 Piece 4-Channel Relay Module. Can directly connect to the MCU output port;. We'd like to settle any problem in a friendly manner. It's just take you 1 minute.
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