Size: no lock Overview This smart door lock module offers true 3D face recognition for fast, hands unlocking and a full set of alternative access methods. It combines secure biometric algorithms, banklevel privacy protection, realtime video intercom, and flexible mechanical settings for reliable daily use and remote management. Key benefits Fast and convenient: True 3D face recognition opens the door instantly with a swipe of the face, eliminating the need to touch the lock or worry about fingerprint wear. Safer privacy: A precision collection chip and banklevel security algorithm record facial feature values without storing facial images, reducing privacy exposure. Remote control and awareness: Builtin doorbell and realtime video call capability let you see and speak with visitors on the lock screen or mobile app before granting access. Multiple failsafes: Seven unlocking methods and an emergency USB interface ensure access even if one method is unavailable. Security features 3D biologic face recognition using mainstream 3D face encryption algorithms for fast and accurate verification. Biologic semiconductor fingerprint sensor that resists fake fingerprint attacks. Antimagnetic pulse protection to resist illegal access via strong magnetic interference. Antitheft alarm that sends alerts to your mobile device if an intrusion is detected. Antipeep password option to prevent password observation. Unlock methods (7in1) 3D face recognition unlock Mobile app unlock Fingerprint unlock Password unlock Card unlock (Mifare1 and ISO/IEC 14443A compatible) Mechanical key unlock Temporary password for visitors Remote video and intercom Doorbell supported. When a visitor rings, the mobile app sends a video call notification. Realtime video call and twoway intercom via the lock screen or the mobile app for identity confirmation. App features include live monitoring, remote unlocking, and issuing temporary codes for guests. Compatible with Android and iOS devices. User capacity and management Managed users: 5 (fingerprint, card, password) Ordinary users: 295 (fingerprint, card, password) Electrical and mechanical specifications Working voltage: 7.0 V to 8.4 V Alarm voltage: 7.2 V Sleep quiescent current: less than 80 microamps (only lock board, module not included) Motor stall current selectable: 2.5 A to 4.5 A (battery supply must be greater than 5 A) Emergency interface: USB interface (requires battery to be charged) Motor direction: supports switching Motor rotation angle and time: adjustable Unlock holding time (latch tongue does not rebound): adjustable Panel functions and convenience Doorbell: supported Onekey locking on front panel: supported Onetouch locking on rear panel: supported Onetouch unlocking on rear panel: supported Practical applications and scenarios Home entry: Children or elderly family members can confirm visitors using the video intercom and use face recognition for quick, contactless access at night. Shortterm rentals or guest access: Generate temporary passwords via the app for cleaners, personnel, or shortterm guests without sharing permanent credentials. Office or shared spaces: Manage multiple ordinary users and a small set of administrators for controlled access, with auditability via the app and alarm notifications for suspicious events. What makes it stand out True 3D face recognition combined with a privacyfirst storage approach. Comprehensive security measures including antifake fingerprint sensing and antimagnetic interference. Versatile unlock options plus remote video intercom that improves safety and convenience for all household members. Flexible electrical and mechanical settings to adapt to different door systems and power environments. Compatibility and notes Card compatibility: Mifare1 and ISO/IEC 14443A compatible. Mobile app support: Android and iOS. Ensure battery and power supply meet the specified current requirements for reliable motor operation. Size listed as no lock; verify compatibility with your existing lock hardware before installation.