Don't let anyone sneak into your room undetected!
Explore how a magnet sets off this cool intruder alarm. It's a fun project for exploring how a magnetic swtich works in an electric circuit.
Ages: 6 years+
$24.95
In stock
Explore how a magnet sets off this cool intruder alarm. It's a fun project for exploring how a magnetic swtich works in an electric circuit.
Ages: 6 years+