4M Industrial Development Limited 4M KidzLabs Magnetic Intruder Alarm Online
$12.04
MMT SKU: 220842 Explore how a magnet sets off this cool intruder alarm. It’s a fun project for exploring how a magnetic …
MMT SKU: 220842
Explore how a magnet sets off this cool intruder alarm. It’s a fun project for exploring how a magnetic switch works in an electric circuit.
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