Try Simplex Alarm System.
>From [log in to unmask] Tue Nov  3 12:22:11 1998
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>Newsgroups:   bit.listserv.museum-l
>Date:         Tue, 3 Nov 1998 15:05:22 -0500
>Reply-To:     Museum discussion list <[log in to unmask]>
>Sender:       Museum discussion list <[log in to unmask]>
>From:         Barbara Batson <[log in to unmask]>
>Organization: The Library of Virginia
>Subject:      Security
>To:           [log in to unmask]
>
>Dear Museum-Lers:
>
>Does anyone know the trade name of a type of motion
>detector that sounds if a patron leans over a barrier or
>gets too close to an object on display?
>
>Also, we are planning a map exhibition for next April, and
>one of the maps is rather large (63 inches high by 95
>inches long).  One group wants to either frame the map or
>enclosed it in mylar.  Another group has suggested hanging
>it with a pole through loops at the top, similar to the
>method used for hanging quilts and large flat textiles.
> Any suggestions?
>
>Thanks.
>
>Barbara C. Batson
>Exhibitions Coordinator
>The Library of Virginia
>


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