An identification tag that is attachable to an item and serves to identify the item with a computerized system, including a base in the form of a container that is cast from a curable material, an electronic circuit that is placed in the base and wirelessly provides a unique ID in response to an electromagnetic signal, a second layer of the curable material filling the base and forming a protective cover over the electronic circuit； and wherein a void of at least 0.5 mm is formed in the base above the second layer； wherein the void is designed to receive a third layer of the curable material for adhesively attaching the identification tag to the item leaving a distance of more than 0.5 mm between the electronic circuit and the item.
