Product · United States

4 in 2 out relay S232/RS485 control relay module input and output switch quantity detection

Product no longer available. The stores we track no longer sell it; last price seen $30.04.

Price history: 2 daily prices tracked since 2026-10-18; lowest $30.04, highest $30.04.

4 in 2 out relay S232/RS485 control relay module input and output switch quantity detection

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