DC 12V 6 channels Optocoupler isolation Relay Interface Module trigger voltage 1.8v 9v 10-30v PLC Signal Amplification Board

DC 12V 6 channels Optocoupler isolation Relay Interface Module trigger voltage 1.8v 9v 10-30v PLC Signal Amplification Board
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sku: 4001149872029
$15.10
Shipping from: China
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