ONE 1 2 4 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger

ONE 1 2 4 channel relay module 30A with optocoupler isolation 5V 12V 24V supports high and low Triger trigger
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sku: 1005002087421398
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$3.39
Shipping from: China
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