Overmolded Uni Metal Tag is designed to perform on any metal object. We challenge the existing knowledge of electromagnetic science and make SAG Overmolded Uni Metal Tag capable of reversing the interference caused by the metallic surface to become its steering power. In other words, tag placement on a metal surrounding environment is no more a headache. Usually, you put UHF Metal Tag in the front (surface) side of the metallic item (such as the door of electrical control box) and it faces to the reader to perform. Now, with the tag's unique antenna design, it can still function well when the tag is in the shadow side of the metallic item. With all these possibilities, the tag poses itself with more tagging flexibility and the reading performance is well noticeable from all angles.