The Yale YDM4109A is a high-security smart biometric door lock designed for modern homes. It offers multiple convenient access methods, including one-touch fingerprint verification, customizable PIN codes, and a reliable mechanical key override for emergencies. Built with a robust mortise design, it features advanced security functions such as an anti-panic egress handle, break-in/damage alarm, and automatic locking. With the optional Yale Access module and Wi-Fi bridge, you can control your lock remotely, grant virtual keys, and receive real-time activity notifications directly on your smartphone.