iTouchless Bio-Matic Fingerprint Door Lock, Antique Brass, Right Handle Keyless entry system can recognize up to 150 fingerprints or 78 pin codes, 2 back-up keys included Equipped with 560 dpi and "Live Layer" optical sensor technology with false identification rate of less than 0.0001% Add or delete user is performed directly on the lock's pin pad. Individual fingerprints can be deleted without erasing all memory D.I.Y. installation, all accessories and tools included with package Antique Brass Color, Right Handled model (standing at outside of your door and if your door swings right)