UHF Ferrite Absorber Tile (FAT-900) is a sintered ferrite with square tile shape. The dimension is 100x100mm and thickness is 4.2mm with a 10mm hole, can be screwed on the wall easily. Due to excellent electromagnetic absorption performance in the UHF band, it works well in Dark Box for mobile phone inspection, prevent TV ghost in high building, prevent radio communication disturbance like mobile phone and avoid UHF RFID readers interfere each other when placed between readers.