I am looking for a product that I can attach to about 30+ tablets that will set off a warning alarm when the item is taken out of a certain area. These tablets will be in a meeting room but I would like some type of warning when these tablets are taken out of the room. This option needs to be able to be turned on and off preferably with admin rights or a key/passcode. Kind of like one of those tags that are attached to clothing in a store that you have to get taken off before leaving otherwise the alarm will go off when you leave the store.