Features of DB-TP Series: Up to 10 active user code Quickly operate to add and delete user codes at the keypad. Easily provide a user code for temporary access. Keypad buttons will glow in the dark for night visibility. Each family member can choose a personalized code. Choose automatic locking or manual locking when door is closed. Spec. : 1. Material in exterior decorate with Solid Brass; interior with Brass Plate. Door handle in Solid Brass - optional S type or V type handle. 2. Open door with passward. 3 Standard equiped with 3 keys. Security Features: Waterproof, could be installed outdoor. Code control: Programing code requireed to add or delete users. Anti-theft and copy, rolling security code. Warning sounds after 4 incorrect code attempts; keypad shutdown for 30 seconds. Low battery alarm for alerting user time to replace batteries. 1 set per box. 10 boxes in one carton.