Features: Made of zinc alloy material, strong, precision, safe and durable. Installation is very simple, open a wire hole, connect the panel and lock body line, and then directly fix the panel and lock body with two screws. Factory state: Management password: 12345678, default home mode, single open mode unlock. Configuration in home mode: 1 group management password, 200 group user password (number 001-200) password digits: 4-15 digits. Ideal for tool boxes, cabinets, drawers, mail box, school lockers or any where keys are not suitable. Specification: Material: Zinc alloy material Battery: 4 x AA Battery (Not included) Advantages: Metal cabinets can be installed A. Change the management password: Original management password + key key 1+ New management password + key key New management password + key key B. Add user password: Management password + key key 8 + number (001-200) key key User password Key key user password Key key ; can be added continuously 1, delete the user password: Management password + key button 4 + number (001-200) key button No. (001-200) key button; can be deleted continuously 2. Delete all user passwords: Management password + key button 0 + key button Note: Enter the wrong password lock keyboard for 7 minutes in succession for 7 minutes. Add a temporary user (operating normally) Add a temporary password (in single-on mode): New temporary password + key button New temporary password + key button; door lock closed C, system settings: 1. Switch between home and public modes: Management password + key button 7 key button 2. Switching from single-on mode to dual-on (combination) mode: Management password + key button 6 key button 3. Double-open (combined) mode is switched to single-on mode: Management password + key button 5 key button Front lock Size: 10.8 x 5.5 x 2cm / 4.25 x 2.17 x 0.79 inch (appr.) Rear lock 14.5 x 6.5 x 2.2cm / 5.71 x 2.56 x 0.87 inch (appr.) Package List: 1 x Front lock body 1x Rear lock body 1 x Lock Slot 6 x Screws Notice: Product unlocking method: digital keys and 125khz ID card (ID card not included)Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .