RFID keychain alert device

[mike.mikemiller at gmail.com (Michael Miller)]

This is not the size of a keychain but it might be more inline for
what you are looking for.

http://www.rfidguardian.org/index.php/Main_Page

-mmiller

On Wed, Aug 19, 2009 at 9:27 AM, James Costello<genesiswave at gmail.com> wrote:
> Size is about right, but I am looking for something that will alert me when
> I have gotten scanned.  i.e. I walk through a door way that someone has made
> into a RFID reader, the device beeps
>
>
> On Wed, Aug 19, 2009 at 10:09 AM, John Navarro <jnavtx at gmail.com> wrote:
> > http://www.parallax.com/StoreSearchResults/tabid/768/txtSearch/rfid/List/0/SortField/4/ProductID/517/Default.aspx
> > small enough?
> >
> > On Tue, Aug 18, 2009 at 2:56 PM, James Costello <genesiswave at gmail.com>
> > wrote:
> > > Does anyone know of a device that could be used to alert when there are
> > > RFID sensor around?  Something small, about the size of key fob.
> > > Something that might be good to have at say a computer security
> > > conference.
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