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Insanity Alarm Kit

SKU: W51066
$9.95 (USD)
Availability: In Stock


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