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5V 4-Channel Relay Module with Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
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  • ฿596.11 
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1Pcs DC-DC Buck Step-down Power Supply Module 5V-12V 24V to 3.3V Fixed Output High-Current
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  • ฿273.02 
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12V 4-Channel Relay Module with Optocoupler Relay 4 Way Relay Module Shield AVR 51 PIC
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  • ฿671.89 
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1Pcs DC-DC Buck Step-down Power Supply Module 5V-12V 24V to 5V Fixed Output High-Current
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  • ฿659.95 
  • Free Shipping