Fast wireless K7421 is a long-distance industrial level anti-metal electronic tag, based on M730 chip development of UHF RFID special tags. The size is 74x 21x 8.4mm, which meets the EPC Class 1 Gen 2 standard. When it is fixed on the surface of a metal asset, the reading distance can reach more than 15 meters. Protection up to IP68, waterproof UV acid and alkali resistant, can be used outdoors for a long time. Widely used in heavy machinery and equipment management, outdoor vehicles, containers, forklift management, pallet cargo management, field asset management.