DYKB 1CH 2CH 4CH 8CH Channel 5V Relay Module Board Shield with Optocouplerisolation Support High and Low Level Trigger

DYKB 1CH 2CH 4CH 8CH Channel 5V Relay Module Board Shield with Optocouplerisolation Support High and Low Level Trigger
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sku: 33007615014
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$1.12
Shipping from: China
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