★ Working voltage :4.2-6 .8 V. ★ applies to: ATM, electronic locks, door locks, safe, safe-deposit box and so on. ★ bio-recognition technology. ★ storage capacity: 100. ★ Input angle: 360 degrees. ★ three-screen liquid crystal display. ★ calendar functions. Check open records. ★ About 12uA working current. ★ low-voltage reminded. ★ drive motor body. ★ Bolt anti-block functions. ★ large-screen liquid crystal display. ★ Touch screen and button input. ★ two sets of passwords to open the door. ★ the user fingerprint and fingerprint separate management administrator.