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://ae04.alicdn.com/kf/H108eccf962e342a9bb963f6f836acb69i.jpg)
sku: 1005002419533940
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$14.04
Shipping from: China
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