20 Channels Optocoupler Isolation Relay Module DC 5V/12V24V for Single Chip Microcomputer Output Signal Amplification Board

20 Channels Optocoupler Isolation Relay Module DC 5V/12V24V for Single Chip Microcomputer Output Signal Amplification Board
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sku: 1005003580080016
$37.03
Shipping from: China
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