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In stock 380 in stock
0.95 1+ units
0.86 10+ units
0.76 100+ units

Description: These are very small rare earth magnets - 0.125" cubed. Composed of Neodymium/Iron/Boron (NdFeB), these magnets are curiously strong and make for a great way to attach tools to a metal workbench, hold small children to a fridge, and as a trigger for reed switches. Don't let the photo fool you - these are very small magnets.

Activates the reed switch (shown below) at a distance of about 1cm.

Sold in single units.

Comments 8 comments

  • Wait, so how big are these, really? Next to the quarter, they do indeed look to be about 0.125", but according to the ruler picture, it’s over 0.25" to a side…

  • Would this magnet paired with a Hall Effect Sensor or a Insulated Reed Switch be able to work mounted to the front wheel and fork on my MC?
    (I’m looking into building a wireless speedsensor).
    The distance from fork to wheel is some inches. (10 cm or so)

  • I’m using these to trigger a Hall effect sensor. A bit more sensor sensitivity is nice on these since they pack less punch than a bulkier magnet, but they’re still plenty strong if you have good sensitivity and a reasonable sensing distance.

    • Could you share numbers? It would be great to know what cm distance (even roughly) it takes for this magnet to trigger a Hall Effect sensor (itself rated to switch at 0.5-9.5mT or 5-95gauss).

  • Could i use these to trigger a Hall Effect Sensor?


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