Is it possible to get an alarm which sounds if the catch of my briefcase is opened while I am out of the room during a meeting?
I use a soft briefcase like this one:
My thoughts so far:
When I have to leave my case unattended maybe I could loop a thin enamelled wire over some part of the catch so that the wire would get snapped when the catch was undone. It's not a great way and I'm looking for something better.
Could some sort of window-catch burglar alarm (with a contact and a magnet or whatever) be used?
Inside the case I would need a portable but loud alarm sounder which would respond to a broken circuit. Are there any off-the-shelf products which would do this?