for 3.3V/5V MCU TTL ​2 Way Relay Module 5V/12V with Optocoupler Isolation Switch Expansion Board Relay Module

for 3.3V/5V MCU TTL ​2 Way Relay Module 5V/12V with Optocoupler Isolation Switch Expansion Board Relay Module
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sku: 1005008590687933
$5.25
Shipping from: China

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