4M KidzLabs Magnetic Intruder Alarm STEM Electronics Security Science Learning

CN¥279.00
+ CN¥36.99 送货

4M KidzLabs Magnetic Intruder Alarm STEM Electronics Security Science Learning

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CN¥279.00

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+ CN¥36.99 送货

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4M KidzLabs Magnetic Intruder Alarm STEM Electronics Security Science Learning

Don't let anyone sneak into your room undetected Build your own Intruder Alarm to keep out those pesky brothers & sisters And while you are at it, explore how a magnet sets off this cool build-your-own intruder alarm. It's a great project for exploring how a magnetic switch works in an electric circuit.Simple construction of the alarm box is required. Requires 2 x AAA batteries. For Ages 5yrs+ Build your own alarm systemLearn basic electronicsFun and practical STEM activity
  • Fruugo ID: 549009949-1107704941
  • EAN: 4893156034403
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  • STANDARD: CN¥36.99 - 之间的交付 周五 20 十一月 2026–周二 01 十二月 2026 - 便宜

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