Industrial Grade Electronic Article Surveillance System is used to identify items as they pass through a gated area and is used to alert someone of the unauthorized removal of items from a store, library, or data centre. The Surveillance System has the feature that by placing it on an item, it is not necessary to hide the item behind locked doors and so makes it easier for the consumer to review the item. The Surveillance System is used anywhere that there is a chance of theft from small items to large. The Industrial Grade Electronic Article Surveillance System is designed in such a manner that the tag or label is fixed to an item and the tag is then deactivated when the item is purchased at the checkout desk and when the item is moved through the gates, the gate is able to sense if the tag is active or deactivated and sound an alarm if necessary.