The two tagging types of STM show different results caused by the tagging surfaces (metal frame and glass).
This is because the properties of the material affect the read distance and rate.
Since the test aims to validate key material types, this paper considers the material properties as well as on-site contexts.
For example, pallets for PTM are made of wood, plastic or iron. Regardless of the material properties, this paper highlights the points that a metal tag is ideal because the pallets must be reused and then the attached tags have to be firm and well packaged.