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DC 12V Delay relay shield NE555 Timer Switch Adjustable Module 0~10S
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  • $18.21 
  • Free Shipping
RS232 to TTL/female serial to TTL/serial module/brush board MAX3232 chip
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  • $17.99 
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1PCS RC Absorption/Snubber Circuit Module Relay Contact Protection Resistance Surge
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  • $18.25 
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