Chip: TK4100/TK4101, fully compatible with EM4102 Working frequency: 125KHz Working pattern: Read-only Induction distance: 2~10cm Internal serial number: 5 bytes Size: 85.5×54×1,80 mm (with a portable hole) Rango R leti' W: 2~10cm, depending on the reader and the application environment Working temperature: -20° C~+ 80 ° C (-4℉~+176℉) Materiales: ABS Wipe times: >100,000 times Data storage: 10 Ja'abo'ob