keyless entry door lock: The keypad lock provides 50 codes for family members, or you can set a one-time code for tenants, neighbors, maintenance workers, or cleaners,you can also unlock the door with a key Security Door Knob: This door knob with lock is crafted from heavy zinc alloy, providing stability and durability compared to lighter aluminum alloy. It features a sturdy cylinder and IP54 weather resistance, meeting ANSI Grade 3 requirements. This ensures a long-lasting and secure solution for your door, offering enhanced protection and peace of mind for your loved ones Smart Locking: This keypad door knob includes anti-peep protection and a backlit keypad, with customizable auto-locking (599 seconds). It also has a dedicated one-touch lock button, making it user-friendly for children and the elderly Multi-function: Smart keyless entry door lock featuring a knob handle, wrong code attempt limit, vacation mode, mute mode, low battery alert, and sleek modern designideal for