3V 2 Channel Relay Module Interface Board Low Level Trigger Optocoupler for Arduino SCM PLC Smart Home Remote Control Switch
![3V 2 Channel Relay Module Interface Board Low Level Trigger Optocoupler for Arduino SCM PLC Smart Home Remote Control Switch](http://ae01.alicdn.com/kf/HTB1Ipz7aET1gK0jSZFrq6ANCXXaz/3V-2-Channel-Relay-Module-Interface-Board-Low-Level-Trigger-Optocoupler-for-Arduino-SCM-PLC-Smart.jpg_350x350.jpg)
sku: 4000013837586
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$0.63
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