Feature: 1. Support for TUYA APP control, can realize remote unlocking, and can check the unlocking record through the APP, and know about the use of the door lock in time. 2. Advanced fingerprint recognition, IC card, password, mechanical key and mobile APP unlock, with multiple door opening modes, combined unlocking, safer and more flexible and convenient. 3. The addition and deletion of fingerprints and passwords are managed based on the unlocking serial number. The number of fingerprints/fixed passwords/cards are all supported at 100. 4. Support temporary password unlocking. When your friends visit, you are still outside, then you can use the APP to send them a temporary password and ask them to come in and sit at home. 5. Virtual password design, when using a password to unlock, you can add multiple incorrect passwords before/after entering the correct password, and press # to confirm. (The anti-peep function can enter up to 16 digits.) 6. Prevent others from peeking at the password, self-checking at startup, intelligent identification, quick selection, such as fingerprint + password or card + password, etc. 7. When you forget to replace the battery and cannot open the door, the USB emergency power supply can help you to avoid the situation that the battery is exhausted and the door cannot be opened. 8. Intelligent voice navigation, human‑computer interaction, and humanized operation make it convenient for the elderly and children to use it. 9. The door lock module is waterproof, moisture-proof and mildew-proof. It has undergone high and low temperature testing, vibration, aging, etc., to adapt to harsh environments. Specification: Item Type: Smart Door Lock Material: Zinc Alloy Unlocking Method: Fingerprint, IC card, password, mechanical key, mobile APP Power Supply: 4.5V-6V (4pcs AA dry batteries) (not included) Typical Quiescent Current: <60 microamperes (battery life can exceed one year) Working Current: <200 mA (strong driving ability) Number of Administrator: 1 Number of Fingerprints: 100 Password: 100 fixed passwords, unlimited number of temporary passwords Card: 100 cards Resolution: 500DPI Rejection Rate: ≤0.1% Error Rate: ≤0.0001% Card Type: 13.56MHz, IC card Emergency Power Supply: 5VDC Password: 6-8 digits Virtual Password: 16 digits Unlocking Time: ≤1S Single Tongue Lock Body Size: 60mm/70mm (2.4in/2.8in) (center distance adjustable) Working Temperature: -20℃-70℃ Relative Humidity: 20%-93% How to Use: 1. Install 4pcs AA batteries (NOT Included), connect the front lock plate and the rear lock plate with cables 2. Download the APP for "TUYA" from the mobile phone to connect the mobile phone and the lock to the same WiFi 3. The lock can be controlled remotely on the mobile APP. Package List: 1 x Front Lock Plate1 x Rear Lock Plate1 x Front Handle1 x Rear Handle1 x Single Tongue Lock Body (60mm/70mm, Adjustable Center Distance)1 x Lock Box1 x Lock1 x Lock Bolt5 x Screw Pack1 x Installation Kit1 x Opening Diagram1 x Manual2 x Mechanical Keys2 x Access Cards1 x Hex Screwdriver