4M KidzLabs DIY set Magnetic Intruder Alarm

    Description

    The disc is made of steel, a magnetic metal which is attracted by the magnet. When the door is closed and the triangles on the magnetic holder and base are aligned, the disc is pulled to one side of the eyelet area by the magnet. When the door is opened, the magnet moves away from the base and the pull from the magnet is no longer strong enough to hold the disc. The disc rolls down into the bottom of the eyelet area and rests across the two terminals. This acts as a switch, completing the circuit and allowing current to flow through the buzzer.
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    4M logo | SOURCE_ID:2739

    4M KidzLabs DIY set Magnetic Intruder Alarm

      EAN: 4893156034403

      The disc is made of steel, a magnetic metal which is attracted by the magnet. When the door is closed... Read more

      📦 3-4 working days

      €13,31 Incl. VAT

        • Shipped today? Order within: Jul 18, 2026 23:59:00 +0300
        • Free shipping on all orders above 50,00

        Description

        The disc is made of steel, a magnetic metal which is attracted by the magnet. When the door is closed and the triangles on the magnetic holder and base are aligned, the disc is pulled to one side of the eyelet area by the magnet. When the door is opened, the magnet moves away from the base and the pull from the magnet is no longer strong enough to hold the disc. The disc rolls down into the bottom of the eyelet area and rests across the two terminals. This acts as a switch, completing the circuit and allowing current to flow through the buzzer.

        Returns & Delivery

        When will my order be delivered?

        We ship worldwide. Your order will be packaged really carefully and delivered wherever you want. Delivery takes between 2-4 business days. You will receive an e-mail after ordering with more information about the delivery.

        Can I return my product?

        Orders can be returned or exchanged within 30 days of receiving the parcel, providing they are in original resalable condition.

        What can I do if my item (or part of it) is damaged?

        We work hard to deliver your items without damage. Orders can be returned or exchanged within 30 days of receiving the parcel, providing they are in original resalable condition.

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