UHF Ear Tag is made of special PET material,which have to be anti-corrosion. Most of the Animal ear tag can do that. However,The PET material have certain effect on UHF wave,to reach higher performance,have to do some adaptation on antenna to refix the wave.
  In current market, lots of other suppliers are using the ordinary inlay stick into the plastic tag shelf, with reading distance can only be within 1.5 meters using 8Dbi antenna, 3 meters using 12 Dbi antenna. Hyintech  HI-TSA8070 is with special design and adaptation to reach the long distance and good operation effort.As our ear tag TSA8070 using 8 dbi antenna, can be read at 6 meters , and 12 DBI antenna can read it at 10 meters .