The Bold Elite Smart Lock SX35 in silver finish is a smart door lock designed to replace existing door cylinders, making it compatible with most standard doors. This stainless steel lock cylinder replacement system fits doors with external cylinder dimensions up to 65 millimeters and internal dimensions up to 35 millimeters. The smart lock provides remote control functionality through smartphone applications, allowing users to monitor lock status and receive notifications when doors remain unlocked while away from home. The system enables temporary access management by setting specific dates and times for authorized entry by family members or guests. Security alerts are generated when unauthorized access attempts occur, providing immediate notification through the mobile application. The stainless steel construction offers durability and corrosion resistance for long-term reliability. For full remote functionality, including internet-based control from any location, the Bold Connect bridge is required as a separate component. This smart lock solution focuses on practical security management through digital access control and monitoring capabilities while maintaining compatibility with existing door hardware systems through cylinder replacement installation.