Fingerprint Door Lock Keyless Entry, Biometric Fingerprint Smart Knob with Emergency Keys, Low Battery Alarm, USB Charging, for Home Office Hotel Apartment Security, Zinc Alloy

Spec: Item Type: Fingerprint Door Lock Material: Zinc Alloy Colour: Black Battery Type: 4 x AAA Batteries Required (Not Included) Unlocking Method: Fingerprint, Mechanical Key Number of Fingerprints: 30 Scope of Application: Ideal for home, office, hotel, apartment door lock Applicable Door Thickness: Approx. 30-65mm / 1.18-2.56in packing list: 1 x Front Fingerprint Door Knob 1 x Back Fingerprint Door Knob 1 x Lock Tongue 1 x Buckle Plate 1 x Buckle Box 2 x Key 1 x Square Bar 2 x Headless Screw 2 x Connecting Pipe 2 x Front and Rear Panel Locking Screws 4 x Self Tapping Screws 1 x Battery Cover Replacement Screw 1 x Screwdriver 1 x Manual

• 2 in 1 Unlocking: The smart door lock supports fingerprint recognition unlocking and mechanical key unlocking, biometric fingerprint unlocking, and 2 mechanical keys for emergency unlocking.
• Quick Identification: Built in fingerprint identification module, this door lock can identify living fingerprints within 2S, and can store up to 30 fingerprints. The error recognition rate is low, and it has self learning function.
• Low Battery Alarm: With low power consumption, you can use at least 4PCS AAA batteries (not included). When the voltage is lower than 4.8V, the low voltage prompt will remind you to replace the battery.
• Emergency Power: Smart door lock will sound an alarm if the battery is low. You can temporarily charge your security lock with a power bank, phone charger, any power source with a USB port.
• Easy to Use: It is safer and more convenient to use through advanced fingerprint technology, which can identify dry and wet fingerprints, suitable for children and the elderly. Applicable door thickness is 30‑65mm.