What is a Reed switch?

A reed switch is an electrical switch that opens and closes in response to changes in the magnetic field. It consists of two metal contacts (reeds) sealed within a glass tube, and the contacts are attracted or repelled by an external magnetic field, causing the circuit to open or close. This characteristic makes reed switches widely used in applications such as motor position detection, door opening and closing detection, and security systems. Reed switches are compact, durable, and simple in design, making them easy to integrate into various devices.

Application of Reed switch

✅Door Opening Detection
Installed on a door to trigger an alarm when opened.
✅Motor Position Detection
Detects the rotational position of a motor and triggers appropriate actions.
✅Security Systems
Monitors the opening and closing of windows or doors to prevent unauthorized entry.
✅Home Appliances
Used to detect whether a refrigerator door is open or closed.

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