Safeguard your home with the sought-after digital door lock: This digital lock for door is primed for security and functionality. Its sleek design supports its versatility! Suitable for 35-65 mm door thickness. Smart Unlocking Mechanism: The Ozone finger lock for door can act as fingerprint door lock requiring your finger print to unlock, user set PIN code or as a digital door lock requiring an OTP from OzoLok Mobile App. This smart door locks for main door also comes with a RFID card for easy access for elderly and a Emergency Override Key. You can easily grant Fingerprint access to your trusted family members. USB battery backup & Auto Locking: When the batteries are completely drained, this biometric door lock has a feature with a power bank and USB port. The lock triggers an alarm if the battery comes below a user-defined threshold, reminding users to replace batteries a few days before discharge. The finger print lock also triggers an alarm automatically after 5 consecutive wrong PIN attempts. Lock size & dimensions: The fingerprint locker has a lock body measuring 55*72 mm, 70*85mm. The total weight of the lock is 2.5 Kg. It has a Capacitive Fingerprint Sensor of (508dpi) A Great Gifting Item: Help keep your family & friends safe by gifting them this smart locks for home main door. The door lock smart fits well on the wooden type of doors & comes with a 24 months warranty from the date of purchase.