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  Dual Hi Lo Switching Relay Board Kit – CK1619

  $14.95 Add to cart
• 

  Sale!

  Electronic Combination Lock Kit – CK0210

  Out of Stock $19.95 $14.95 Read more
• 

  Sale!

  Liquid Level Controller Kit – VEK2639

  $29.95 $23.95 Add to cart
• 

  Sale!

  Parallel Port Relay Board Kit – CK1601

  $34.95 $19.95 Add to cart
• 

  Sale!

  Sound Activated Tape Recorder Switch Kit – CK0213

  $14.95 $8.95 Add to cart
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  Three Light/Dark Activated Relay Switches

  $27.95 Add to cart
• 

  Sale!

  Touch Contact Switch Kit – CK1606

  $14.95 $12.95 Add to cart
• 

  Touch Pad Code Lock Kit

  $44.95 Add to cart
• 

  Sale!

  Velleman K6714 16 Universal 16 Relay Card Kit

  $119.95 $99.95 Add to cart
• 

  Sale!

  Velleman K6714 Universal 8 Relay Card Kit

  $79.95 $59.95 Add to cart

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