The Tuya App Digital Automatic Smart Lock (DF04) is a highly adaptable and secure locking solution with various unlocking methods:

Multiple Unlocking Methods: Access through the TUYA app, fingerprint recognition, password entry, card access, or a traditional key.
Durable Construction: Made from robust aluminium alloy, ensuring corrosion resistance and durability.
Eco-Friendly Battery System: Capable of storing up to 300 fingerprints, passwords, and IC cards. The battery supports up to 12,000 uses, lasting over 18 months.
Automatic Locking: Secures the door automatically once closed and includes a mechanical key for emergencies.
Data Integrity: Retains data related to fingerprints, passwords, and IC cards even during power loss. A USB port is available for emergency charging.
Security Features: Integrated alarm alerts users to low battery levels or multiple failed unlocking attempts.
Compatibility: Suitable for door thicknesses between 35-90mm, available in grey or gold finishes. Compatible with iOS 7.0 or higher and Android 4.4 or higher.
Environmental Tolerance: Operates effectively within a temperature range of -20 to 65 ℃ and humidity levels from 10% to 90%.
Dimensions and Weight: Measures 75*410mm and weighs 3.6 kg.