This keyless entry deadbolt provides keypad-based access for residential doors, offering a balance of convenience and everyday security. The lock supports up to 20 permanent user passcodes for household members and includes a one-time PIN option that is automatically deleted after a single use, suitable for short-term access. Auto-lock functionality can be set to engage between 10 and 99 seconds after unlocking. The lock can also be secured instantly using one-touch locking by pressing and holding any keypad button for two seconds. An anti-peeping code feature allows additional digits to be entered before or after the correct code to help reduce the risk of code exposure. Constructed with an aluminum alloy housing, the deadbolt is designed for durability and is rated IP54 for resistance to typical outdoor exposure. The keypad is backlit for visibility in low-light conditions. The lock operates on four AA batteries (not included) and is designed for extended battery life, with a low-battery indicator that alerts when power drops below approximately 15%. Installation is designed to be completed using a screwdriver and standard door preparation. The lock is compatible with doors that have a 2-1/8 inch (54 mm) bore hole and is not compatible with 38 mm door holes. The design supports both left- and right-handed door configurations. All programming and operation are handled directly through the keypad, with no app, Wi-Fi, or hub required. Features Keypad entry with support for up to 20 user codes One-time PIN option for temporary access Adjustable auto-lock timing and one-touch locking Anti-peeping code entry feature Backlit keypad for low-light use Aluminum alloy construction with IP54 weather resistance Low-battery indicator Power & Compatibility Power source: 4 AA batteries (not included) Door hole size: 2-1/8 in. (54 mm) only Installation: Standard screwdriver installation Door handing: Left- or right-handed compatible Notes Not compatible with 38 mm door holes Batteries are not included Verify door dimensions before installation