Fingerprint Door Lock, Smart Door Lock, Biometric Keyless Entry Door Handle for Home Apartments Offi

Fingerprint Door Lock, Smart Door Lock, Biometric Keyless Entry Door Handle for Home Apartments Office Hotel Bedroom, Suitable for Left Handed and Right Handed Door, Black, ??3-in-1 Versatile Lock: APP unlocking, Fingerprint unlocking, Backup mechanical key. Press the fingerprint to unlock in one step. Perfect fits for most standard inner residential and office door, ??Smart App Control: App/Software is free to use forever. No hidden charges or long-term costs, ??Energy Saving Long Standby : 4*AAA batteries support unlock about 6000 times(up to 10-12 months) with low power consumption. Automatic alarm for low battery., ??Easy to Install : Fit for most standard door and both fit left & right handed doors. Door thickness range: 1.38 inch to 2inch thick. Backset:?Adjustable 2.38"" (60mm) or 2.75"" (70mm). Only need a screwdriver to easily complete the installation. Easy to replaces existing deadbolt and latch, ??Tips : The lock is default Right-hand open direction. If you need to change to Left-hand open direction, please refer to the part starting from 3'35 in the "" Install step by step "" video., ,