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    5V 2 Channel RS232 DB9 Serial Control Relay Switch Board SCM PC Relays

    • Item No : 201774967980
    • Condition : New
    • Brand : Unbranded/Generic
    • Seller : alice1101983
    • Current Bid : US $5.44

    • * Item Description

    • With capacitor filter circuit, with improved stability. Onboard 2 relay (which can be accessed extended 2-way relay module). Each relay has a LED indicator, LCD lights relay absorption. Simple to operate, most serial instruction are single byte instruction.
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