WiFi Digital Electronic Smart Door Lock with Biometric Fingerprint, Smart Card, Password, and Mechanical Key Unlock Model 240 3085 Pack of 4 pcs Why this smart lock matters This smart door lock combines multiple reliable unlocking methods in one unit to simplify secure access. Biometric fingerprint recognition, smart card, numeric password, mechanical key, and Tuyacompatible WiFi connectivity give property owners flexible control, reduce key management hassles, and enable remote access when needed. The result is a practical solution for homes, rental units, and small offices that need modern access control without complex infrastructure changes. Key benefits Multiple unlocking methods for everyday convenience: fingerprint, smart card, numeric password, and mechanical key provide redundancy and flexibility for different users. Remote access and management: Tuyacompatible WiFi connectivity allows smartphone control and remote unlocking through a compatible app, reducing the need for physical key exchange. Simplified user management: Assign and revoke access without changing physical locks, making it easy to manage tenants, staff, or service providers. Reliable everyday use: Designed for regular residential and light commercial applications where consistent, userfriendly access is required. Packaged for multiple doors: Supplied as a set of 4 pcs, suitable for multidoor installations or property portfolios. Core features Unlock methods: Biometric fingerprint, smart card, numeric password, and mechanical key. Connectivity: Tuyacompatible WiFi for remote control and appbased management. Models: 240 and 3085 included in the product offering. Quantity: 4 pcs per pack for multidoor deployment. Practical attributes Function: Digital electronic locking with biometric verification and alternative access options for secure entry. Compatibility: Works with Tuyacompatible smart home systems when connected via WiFi for remote operation. Installation: Designed to fit standard door preparations for residential and light commercial doors. Performance: Intended for reliable daily operation with multiple user access modes to reduce lockouts and key dependence. Use scenarios 1) Residential security and convenience Install on the main entrance of a family home to allow quick fingerprint entry for household members, temporary numeric codes for visitors, and remote unlocking for deliveries or guests via the Tuyacompatible app. 2) Shortterm rental and property management Use on Airbnb or holiday rental doors to issue timelimited access codes or smart cards for guests, revoke access between stays, and provide remote entry capability for cleaners and maintenance staff without physical key exchange. 3) Small office or shared workspace Deploy across multiple office doors to centralize access control, manage employee credentials, and use the mechanical key as a supervised backup when needed. What is included Digital electronic smart door locks compatible with models 240 and 3085 Pack quantity: 4 pcs Supports fingerprint, smart card, password, and mechanical key unlocks Tuyacompatible WiFi connectivity for app management Who this is for Homeowners seeking keyless entry with backup options Property managers and shortterm rental hosts needing remote and temporary access control Small business owners who want flexible, easytomanage door security Ordering note This listing is for a pack of 4 smart locks, models 240 and 3085, with builtin biometric fingerprint, smart card, password, mechanical key unlocks, and Tuyacompatible WiFi connectivity for remote management.