The ZKTeco AL40B Deadbolt Digital Lock is a modern smart security solution designed to deliver reliable protection, flexible access control, and convenient everyday use for homes, apartments, offices, and rental properties. Built with a strong zinc-alloy body and an American standard deadbolt structure, this digital lock ensures durability and long-lasting performance while maintaining a sleek, contemporary look that complements modern doors.
This smart lock supports multiple unlocking methods, including fingerprint, passcode, MIFARE card, Bluetooth mobile app, and mechanical key backup. The semiconductor fingerprint sensor offers fast and accurate recognition even for dry or rough fingers, helping users enter quickly without delays. Bluetooth Low Energy (BLE 4.0) connectivity allows you to unlock and manage the lock via a compatible mobile app, making it easier to grant or control access remotely within Bluetooth range.
For enhanced security, the AL40B includes a random password feature that allows users to add extra digits before or after their real PIN, preventing password theft from onlookers. Lock-out mode and private mode provide additional control, while voice guidance and adjustable volume settings improve usability for different environments.
The lock is designed for practical installation with a reversible handle suitable for different door opening directions and compatibility with standard door thickness. Powered by four AA batteries, it delivers long operational life and reliable performance across a wide temperature range, making it suitable for both residential and light commercial use. Overall, the ZKTeco AL40B combines security, smart functionality, and user-friendly design—making it an excellent choice for anyone seeking a dependable digital deadbolt lock.
Multi-access unlocking: fingerprint, PIN code, MIFARE card, Bluetooth app, and key backup
Fast semiconductor fingerprint sensor for accurate verification
Bluetooth BLE 4.0 mobile unlocking support
Random password function for enhanced security
Lock-out mode and private mode for controlled access
Voice guidance with adjustable or silent volume
Durable zinc-alloy construction with American deadbolt design
Reversible installation for various door directions
Reliable battery-powered operation with long usage life
Eliminates the hassle of carrying keys while maintaining secure access
Offers multiple authentication options for families, staff, or tenants
Enhances property security with advanced biometric verification
Provides convenient smartphone-based unlocking and management
Suitable for homes, offices, rental apartments, and small businesses
Durable design ensures long-term value and dependable protection
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