About this item

• 🔒【THREE UNLOCK MODES】：Fingerprint door lock support three unlock modes: fingerprints(50fingerprint users), passcodes(100 groups of passcodes) and mechanical keys(2 pcs).
• 🔒【LARGE AREA FINGERPRINT SENSOR】: Fingerprint door lock has upgraded the resolution of the large area fingerprint sensor. 160*160, the area is increased by 35% compared with the ordinary fingerprint sensor 120*120.
• 🔒【AUTO-LOCKING 】: Smart lock is equipped with an automatic-locking function. The interval time of automatic locking can be set through the APP. After unlocking, it will be automatically locked within the set time.
• 🔒【VOLUME ADJUSTMENT】: The sound of the smart door knob is divided into 1, 2, and 3, and the level can be manually adjusted.（1: minimum volume, 2: medium volume, 3: maximum volume）
• 🔒【EXTERIOR BACKUP POWER】：Smart door lock has an external backup power interface, when you forget replaced the battery, you can use emergency USB for power supply and unlock.（This interface is only used for emergency power supply and cannot be charged）
• 🔒【EASY INSTALLATION】: Keyless entry door lock is designed to fit US standard door, Backset 2-3/8″(60mm) and 2-1/8″(70mm), door thicknesses from 1-3/8'' to 2-1/8''(35mm -55mm). No wiring and no drilling. Fit both left handed and right handed doors.
• 🔒【WARMTIPS】: Smart door lock requires 4 AAA batteries (not included), According to the frequency of use, it can be used for up to 8-10 months. It has low battery reminder function (the red light will flash three times when unlocking); Equipped with a USB interface for emergency charging.(Note: This interface is only used for emergency charging, the battery cannot be charged, and the battery needs to be replaced in time.)