100VDC Oberflächenhalterung verdrahtet NC/KEIN Tür Fenster Sensor Magnet Schilf Schalter
ab 3,35 €
There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. A normally closed reed switch is closed when not near a magnet; when a magnet approaches it, the normally closed switch will open.
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