10 Pcs N/O Reed Switch Convenient DIY Magnetic Reed Switchs Reusable for Arduino
4,84 €
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.
Jetzt bei Ebay:
