4-Kanal 3V Relaismodul Erweiterung Steuerplatine mit Optokoppler Trennung
12,92 €
Strong anti-interference ability, with photoelectric isolation;. 1 Piece 4-Channel Relay Module. Can directly connect to the MCU output port;. It's just take you 1 minute. We'd like to settle any problem in a friendly manner.
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