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 RFID tags come in all different shapes, sizes, and packaging depending on the assets or items being tagged. Most users will immediately think of the low cost RFID smart labels used in many supply chain and compliance applications for their devices. Although smart labels may work for some asset tracking applications, they are rarely the right solution as they do not work well on any metallic based products.
What type of tag to use?
The type of tag will be determined based on upon the following:
- Asset Composite Material – The exact physical makeup of the assets determines what type of tags will be used. If the asset has metallic content, then the tag must be made specifically to mount directly on metal. Plastic products and glass products dictate different tags compared to corrugated or wood products.
- Size – The size of the asset and the available space to place an RFID tag so the asset can be used as designed is critical.
- Read Range – The expected read range is important for choosing the right tag for the job. A common mistake is picking the tag before the read zone has been determined, resulting in a different tag necessary. Read range is usually a function of tag antenna size. The larger the tag, the larger the read range.
- Fastening – How the tag will be attached to the asset is critical. If the tag must last through acid baths and immersion in salt water, adhesives may not be the best attachment method. Tags can be mounted with adhesive, straps, screws, welds, or shrink wrap.
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