Build your own room alarm with this self contained educational project kit and keep your room off-limits to unwanted invaders. Learn how a simple room alarm works.
Simply attached to the wall and door using self-adhesive pads provided. The buzzer is activated when the door is opened alerting you of unwanted intruders.
Solderless connections and simple, clean snap together assembly. Powered using safe low voltage battery (not included).
Ideal for any inquisitive mind aged 14 years and over. Children should only use under competent adult supervision. Suitable for schools and other educational establishments as a practical teaching aid.