Electrical characteristics Internal chip: NXP U CODE 7, NXP U CODE 7m Communication protocol: کلاس EPC 1 ژنرال 2, ISO 18000-6C compliant Capacity: NXP U CODE 7: 128 bits EPC, no user memory NXP U CODE 7m: 128 bits EPC, 32 bits user memory Operating frequency: 902~928MHz Reading distance: Fixed reader: 87× 17 میلی متر: 7متر (22 feet) 60× سه 20mm: 5.5متر (18 feet) Handheld …