DFRobot
Magnetic Switch
This magnetic switch consists of two parts: a reed switch sensor with cable and a magnet trigger in a plastic housing. When the magnet is brought within appr...
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This magnetic switch consists of two parts: a reed switch sensor with cable and a magnet trigger in a plastic housing. When the magnet is brought within approximately 1 cm of the sensor, the reed switch closes, allowing you to detect position changes, door/window states, and proximity events.
The switch is characterised by low power consumption, a wide voltage range, long lifespan, and reliable operation — making it well suited for security, home automation, and position-sensing applications.
Key Features
- Reed Switch Sensor – Activates when magnet is within ~1 cm
- Two-Part Design – Separate sensor and magnet for flexible mounting
- Low Power Consumption – Suitable for battery-powered applications
- Long Lifespan – Reliable mechanical reed switch
- Wide Voltage Range – Compatible with various logic levels
Ideal For
- Door and window open/close detection
- Security and alarm systems
- Position sensing and limit switches
- Smart home automation
Package Contents
- 1× Reed switch sensor with cable
- 1× Magnet trigger
Jargon buster
Plain-language definitions for the technical terms used above.
- 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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Supplier page — dfrobot.com
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