Electrical characteristics Internal chip: NXP U CODE 7, NXP U CODE 7m Communication protocol: EPC Class 1 Gen 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: 87×17mm: 7m (22 feet) 60×20mm: 5.5m (18 feet) Handheld …