With optocoupler isolation 4-way relay module MCU Expansion board Control board 5V relay output for PLC control
![With optocoupler isolation 4-way relay module MCU Expansion board Control board 5V relay output for PLC control](http://ae04.alicdn.com/kf/Hf05d3521bb444b07a66e12f85d91adf54.jpg)
sku: 4000108638056
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$2.93
Shipping from: China
Technical Details
Model Number: | relay module |
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