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Standard mini Reed Switch Module
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$7.80
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A compact reed switch module that closes its circuit when a magnetic field is present. Inside the glass envelope, a pair of ferromagnetic metal contacts come...
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A compact reed switch module that closes its circuit when a magnetic field is present. Inside the glass envelope, a pair of ferromagnetic metal contacts come together when a magnet is brought close, and spring apart when the magnet is removed — providing a simple, contactless switching mechanism.
Key Features
- Magnetic Activation – Closes circuit in the presence of a magnetic field
- Normally Open – Contacts are open when no magnet is present
- Compact Size – Mini form factor for easy integration
- No Power Required – Passive component, no operating current needed
Ideal For
- Door and window open/close detection
- Proximity sensing with magnets
- Security alarm systems
- Arduino and microcontroller input projects
Package Contents
- 1× Mini Reed Switch Module
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Reed switch
- A small switch sealed in glass that opens or closes when a magnet is nearby. It is useful for simple door, lid, wheel, or position sensing because it can detect motion without needing to be pressed directly.
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