CIOVIO2PCS 4 channel 5v relay shield module, Four channel relay control board relay expansion board for arduino UNO R3 mega 2560
![CIOVIO2PCS 4 channel 5v relay shield module, Four channel relay control board relay expansion board for arduino UNO R3 mega 2560](http://ae01.alicdn.com/kf/Hf6457ef1554944b2ba4957dacbb7bdder/CIOVIO2PCS-4-channel-5v-relay-shield-module-Four-channel-relay-control-board-relay-expansion-board-for.jpg_350x350.jpg)
sku: 4001205194012
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$11.68
Shipping from: China
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