The ZKTeco AL40B is a premium Bluetooth-enabled smart deadbolt door lock designed for residential homes, apartments, offices, and small commercial properties. It combines fingerprint recognition, MIFARE card authentication, PIN code, Bluetooth mobile app, and mechanical key access to provide flexible and secure entry management. Equipped with a high-performance semiconductor fingerprint sensor and BLE 4.0 connectivity, the AL40B can be managed through the ZK SmartKey mobile app for convenient smartphone control. Its zinc alloy construction, American standard deadbolt, reversible design, and outdoor-ready construction offer durability, modern aesthetics, and reliable security for everyday use.

Key Features

• Multiple authentication methods:
  • Fingerprint
  • MIFARE card
  • PIN code
  • Bluetooth mobile app
  • Mechanical key
• Bluetooth Low Energy (BLE 4.0) connectivity
• Compatible with the ZK SmartKey mobile app
• High-performance semiconductor fingerprint sensor
• Supports up to 100 users
• Supports 100 fingerprints
• Supports 100 PIN codes
• Supports 50 MIFARE cards
• Durable zinc alloy construction
• American standard deadbolt mortise
• Reversible design for left- and right-hand door installation
• Random Password function to prevent password observation
• Private Mode for enhanced privacy
• Lock Out Mode for additional security
• Voice guidance (English, Spanish, and Portuguese)
• Adjustable volume with silent mode
• Power supply: 4 × AA alkaline batteries
• Emergency 9V battery backup interface
• Battery life: Up to 5,300 unlocks (approximately 10 months under typical use)
• Suitable for door thickness: 35–53 mm
• Operating temperature: -20°C to 55°C
• Ideal for homes, apartments, offices, Airbnb properties, and small commercial buildings.