chip: TK4100 / TK4101, fully compatible with EM4102 Working frequency: 125KHz Working pattern: read-only Induction distance: 2~10cm Internal serial number: 5 bytes Size: tynne kort: 85.5×54×0,84mm Standard tykkelse Tynt kort: 85.5×54×1,05 mm tykkelseskort: 85.5X 54 x 1.80mm (med en bærbar hull) R / W område: 2~ 10cm, depending on the reader and the application environment Working temperature: -20℃ ~ + 80 ℃ (-4℉ ~ + 176 ℉) materialer: PVC / PET / PETG / ABS / PHA / PC / papir,etc. Tørk ganger: >100,000 lagring ganger data: 10 …