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    1pcs Slot-type Optocoupler Module for Arduino Voltage 3.3V-5V

    • Item No : 301924603754
    • Condition : New
    • Brand : Unbranded/Generic
    • Seller : auelectronics8_6
    • Current Bid : US $0.65

    • * Item Description

    • 1 module slot unobstructed, receiver tube conduction module DO output low, shelter, DO output high;. 2 module DO connected to the relay, composed of the limit switch functions can also be connected to the active buzzer module, composed of the alarm.
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