I'm looking for a small electromagnet that can trigger a reed contact.
This video shows a similar example:
The magnet should be as small as possible: shortest side max. 15mm the other side about 30mm, less is better.
The reed I need to trigger is encapsuled in a plastic waterproof cover, where the magnet can be attached to.
Also it should be possible to work for about 100h or so on a battery (about 4x 20ms/min), preferable 9V or 2xAA.
I looked extensivly on several location but without any luck.
Maybe a coil used in some kind of device is useable or it is ready available?
Any ideas anyone?
This video shows a similar example:
The reed I need to trigger is encapsuled in a plastic waterproof cover, where the magnet can be attached to.
Also it should be possible to work for about 100h or so on a battery (about 4x 20ms/min), preferable 9V or 2xAA.
I looked extensivly on several location but without any luck.
Maybe a coil used in some kind of device is useable or it is ready available?
Any ideas anyone?
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