![4M KidzLabs-Spy Science Intruder Alarm](http://www.kidstuff.com.au/cdn/shop/products/FSG3246_1_560x700.webp?v=1676606963)
- Description
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Learn the science of connecting an electric circuit. Construct your own door buzzer and place it behind your door. It's cool and fun!
Learn the science of connecting an electric circuit. Construct your own door buzzer and place it behind your door. It's cool and fun!
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