This door lock provides IoT service via WiFi without a separate gateway, allowing remote safety monitoring and access management. A user can control the door using a smartphone as well as receive notifications and reinforce security by linking with a door camera that can recognize faces. Its sensor detects the distance and motion when a user leaves the house. The lock is automatically released so seniors and disabled people can easily open the door. Users can select the handle design from a variety of models to suit their own style.