1.Standard industrial STN 128 x 64 LCD 2.Each user can register 3 separate sets of fingerprints. 3.No card or ID necseeary for fingerprint matching. 4.Maximum capacity of proximity main system is 4000 cards. 5.Backlight 16 (4x4) luminous stainless steel keypads 6.Build in Time & Attemdamce function.