YYT 5V Relay module KY-019 1 2 4 6 8 road optocoupler relay module with optocoupler isolation

YYT 5V Relay module KY-019 1 2 4 6 8 road optocoupler relay module with optocoupler isolation
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sku: 1005004102440230
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$0.36
Shipping from: China
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