The Bold Elite Smart Lock SX43 in silver finish is a smart door lock designed to replace your existing door cylinder, making it compatible with most standard doors. This stainless steel lock fits doors with both interior and exterior cylinder dimensions up to 45 millimeters. Through the Bold smartphone application, you can remotely verify whether your door is locked and receive notifications if it remains unlocked. The system allows controlled access by granting temporary permissions to others with customizable schedules, such as permitting home care services on specific days and times. The application maintains a detailed log showing exactly who accessed the lock and when. For full remote functionality from any location via internet connection, the Bold Connect bridge is required but sold separately. This electrical door lock provides enhanced security monitoring and access management for residential properties.