10 Stück N/O Reed Schalter Praktische DIY Magnetische Reed Schalter Nützlich für Arduino
4,49 €
Reed switch is the abbreviation of dry reed switch. Usually, the two reeds made of special materials in the glass tube are separated. When a magnetic substance is close to the glass tube, under the action of the magnetic field lines, the two reeds in the tube are magnetized and attracted to each other.
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