This smart door handle lock blends traditional reliability with modern convenience. Featuring five unlocking methods — fingerprint, password, IC card, mechanical key and TUYA Bluetooth App — it adapts to a wide range of use cases from family homes to short-term rentals and workplaces. The minimalist handle design houses a sensitive touch keypad and a high-performance smart chip for smooth operation and easy password management. The upgraded fingerprint sensor delivers fast, accurate recognition (up to 99%) and can unlock in as little as 0.1 seconds, dramatically improving entry speed and convenience. For best performance and power saving, please wake the lock before using the fingerprint or password. Using the TUYA Bluetooth App, you can share temporary or permanent e-codes (passwords), review access history, receive security alerts and centrally manage user permissions. Designed for quick, no-drill installation on most US standard left/right doors, this lock includes a physical key as an emergency backup and is powered by 4×LR3 (AAA) 1.5V alkaline batteries (batteries not included). Before purchasing for high-traffic or unusual door types, please confirm door thickness and specifications to ensure full compatibility.