Main technical parameters Working frequency: 125KHz Applicable cards: kad Ibutton, 125KHz card Card reading time: 0.2s Induction distance: 0cm Indicator light: 2 LED(merah / putih) Kuasa: Mana-mana USB standard Port atau melalui USB / 220V penyesuai, or from 2×CR2020 batteries Working Temperature: -20ºC~+65ºC Material: plastik (kalis air, tetapi tidak sesuai untuk keadaan persekitaran keras) warna sarung plastik: brown Size: 100× 33 × 10mm