Smart electronic door lock in gray designed for secure, convenient access control for residential and light commercial doors. Suitable for doors with thickness from 40 to 120 mm and supports both left and right opening installations. Two available styles share the same functions; choose the style that matches your door configuration. Key benefits Multiple convenient unlocking options to fit everyday needs: fingerprint, password, IC card, and mechanical key. capacity battery and doorbell function for reliable daily use and visitor notification. Builtin antitheft alarm for added security and peace of mind. Fake password feature prevents password exposure by allowing extra digits before and after the real password. Cat eye function lets you view who is outside the door without opening it. Main features Color: Gray Size: 24X240MM Voltage: 7.4V Battery type: Lithium battery with 4200mAh capacity for longer runtime Fingerprint capacity: 100 entries Password capacity: 100 entries IC card capacity: 100 cards Door thickness compatibility: 40120 mm Doorbell function included English system supported Supports left open door or right open door installation Unlock methods: fingerprint, password, card, key Antitheft alarm system Fake passwords can be added before and after the real password Cat eye function to see who is outside Two styles available with identical functions; select according to actual door situation Package contents 1 x Lock 1 x Lock cylinder Tools for installation Home improvement hardware for doors and deadbolts Practical use scenarios Residential front door: a conventional lock to enable keyless entry for family members, store multiple fingerprints and cards, and use fake password entry to protect code privacy. Rental property or shared housing: Store up to 100 user credentials and change access quickly without rekeying. Doorbell function allows tenants to receive visitor alerts. Small offices and workspaces: Manage staff access with fingerprint and card options while the antitheft alarm adds a layer of protection after hours. Compatibility and installation notes Designed for standard residential and light commercial doors with a thickness between 40 and 120 mm. Supports left and right opening doors. Two available exterior styles share identical internal functions; confirm your door type before selecting a style. Rechargeable lithium battery rated 7.4V and 4200mAh powers the unit and doorbell. Follow supplied instructions for secure installation and battery care. This lock provides flexible, multiuser access control and practical security features without complex setup. Ideal for anyone wanting to upgrade an existing door to a modern electronic locking system while keeping mechanical key backup.