Main technical parameters Working frequency: 125KHz Applicable cards: iButton kat, 125KHz card Card reading time: 0.2s Induction distance: 0cm Indicator light: 2 dirije(wouj / blanch) Pouvwa: Nenpòt USB estanda Port oswa atravè USB / 220V adaptè, or from 2×CR2020 batteries Working Temperature: -20ºC~+65ºC Material: Plastik (ki enpèmeyab, men se pa apwopriye pou kondisyon difisil anviwònman) Plastik koulè bwat: brown Size: 100× 33 × 10mm