4M Intruder Alarm 00-03246
Learn the Science of connecting an electric circuit. Construct your own door buzzer and place it behind your door. Stop intruders from your room. It’s cool and fun!
.STEAMers - ستيمرز
4M Intruder Alarm 00-03246
Learn the Science of connecting an electric circuit. Construct your own door buzzer and place it behind your door. Stop intruders from your room. It’s cool and fun!
.STEAMers - ستيمرز
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