Smart Cylinder Lock Intelligent Biometric Door Lock

Features:
* Multiple Unlock Ways: Fingerprint unlock, password unlock, key unlock.
* Password support 30 groups 6-12 digitals. Support the anti-peeping virtual password enter, input the random passcode before or after the correct password, this makes your door much secured.
* Adjustable Lock Cylinder: The inside handle can be adjustable freely, can be adjusted to the maximum length of 20mm.
* Cylinder Size: 30/30mm, 35/35mm, 40/40mm, 60/40mm, 75/40mm optional (Standard: European Standard 40/40mm)
* Copper lock cylinder, 304 stainless steel rear lock gall. Resisting sawing and destruction. Easy installation and safety guarantee.
* Mechanical Key Unlock: Mechanical key external power supply interface as spare in case the batteries is dead.
* Low battery alarm: When the battery power is lower than 3.6V, it will alert to remind you to replace the battery in time.
* With the easy getting change of batteries, it saves up and be more convenient when power off. Battery with long life.