Adel 3398 Keyless Biometric Fingerprint Door Lock Trinity Fingerprint + Password+ Key It adopts European standard lock core and a thin lock construction, flexible use, good scalability The perfect combination of lock, password and biotechnology can open the lock by a mechanical key, emergency password or group members fingerprint The fingerprint storage capacity is up to 120 pieces Lock function: lock upward or rotate with front/rear handle can make the door lock with convenience and safety Normally open function: directly rotate a front handle and open the door, suitable for use in a specific situation