Description
With this kit, students will create an alarm that is ideal for a window or door. When triggered, the alarm produces a loud, pulsating, electronic sound from the built-in piezo speaker and flashes a bright red LED. The sound does not stop until the alarm is manually turned off. Once assembled, the alarm can be installed with a small magnet glued to the window or door.
Skill Level: 2
Size: 2-1/8″ x 3-7/8″
Includes
parts
PC board
reed switch
magnet
instructions
Requires 9V battery, sold separately.
