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Insanity Alarm Kit

SKU: W51066
$9.95 (USD)
Availability: Out of Stock - Please allow 2-4 weeks for shipping.


Set this kit in an inconspicuous place with light shining on it, and it remains perfectly silent. However, as soon as the light is turned off, the kit gives a high-pitched, irritating sound. When students turn the light on to look for the culprit, the alarm goes silent again. Easy to build and lots of fun. Operates using a 9 V battery, sold separately. Complete with all parts, PC board, and instructions. Size of board: 2.9" x 1.8".


Type: Project Kits Grades: 6-12



  • Assembly Method: Soldering required
  • Skill Level: 1
  • Material: PC board, electronic components