Every tag-based EAS system relies on two components to work: an antenna or a reader and a whole lot of tags. Obviously, antennas are pretty much a one-time investment (at least until they break down), but tags are more of a regular expense so you’d want something that won’t break the bank. Well, UHF RFID tags are also generally cheaper than LF and HF tags, which is probably why more and more retailers are switching to them.
Another benefit of UHF radio waves is that they travel so much farther than their LF and HF counterparts. This ultimately gives you more wiggle room in terms of how you can layout your store. It also allows you to position each product wherever you want without running the risk of having its tag go out of your antenna’s range.