Magnetic fields are equal parts fun and useful. We've got compass sensors, hall-effect sensors, and reed switches to integrate with your next project.
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5 Items

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  1. Magnetic contact switch (door sensor)
    Rating:
    100% of 100
    SKU: ADA375 Brand: Adafruit
    This sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is 'open' (no connection between the two wires). The other half is a...
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    2 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by Aug 11th
  2. Reed Switch
    Rating:
    100% of 100
    SKU: COM-08642 Brand: Sparkfun
    This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1.2A.
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    7 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by Aug 12th
  3. Magnetic Door Switch Set
    Rating:
    100% of 100
    SKU: COM-13247 Brand: Sparkfun
    This is the Magnetic Door Switch Set, a small reed switch assembly specifically designed to alert you when doors, drawers, or any other aperture opens. These types of switches are primarily used in home security systems. One half of the assembly set on a window or door frame and the other attached to the window or door itself. When the switch set is separated from each other the contact is broken and triggers an alarm.
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    2 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by Aug 12th
  4. Hall Effect Sensor - US1881
    Rating:
    100% of 100
    SKU: COM-09312 Brand: Sparkfun
    The US1881 is an integrated Hall effect latched sensor. That’s nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robust presence sensor. A reed sensor also works nicely, but can be limited by the glass encapsulation and size. A hall effect sensor is much smaller, but can handle less current than a reed switch.
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    16 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

    Delivered by Aug 12th

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