3V-5V Metalldetektor Kit Elektronisches Kit berührungsloser einfacher Metallsensor Zum Selbermachen Kit
ab 6,80 €
1 x 3V Buzzer. The L1 and L2 of this machine use copper conductors on the printed board to form inductances. You do not need to make your own inductances. It is simple and has a very high success rate!
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