50μA Thick 40mm Fingerprint Digital Door Lock with 200 Fingerprint Capacity for Aluminum Alloy & Sliding Doors

This 50μA thick 40mm fingerprint digital door lock is specifically engineered for specialized door types including aluminum alloy doors, sliding doors, and KFC-style doors. With advanced semiconductor fingerprint recognition technology and multiple unlocking methods, it provides secure, intelligent access control for commercial and residential applications.

Designed specifically for challenging door types where standard smart locks fail to fit properly, including framed doors, aluminum alloy doors, broken bridge doors, sliding doors, and KFC-style doors. Features seamless accessories with adjustable volume for both indoor and outdoor installation.

• Semiconductor fingerprint sensor with 0.3-second recognition speed
• Anti-peeping password protection with garbled code input capability
• C-level anti-theft key and built-in clutch mechanism
• Multiple unlocking methods: fingerprint, password, card, Bluetooth, and mobile app
• Comprehensive alarm system: tamper-proof, low voltage, wrong input, and violent opening detection
• Combination unlocking for enhanced security (two methods required)

• Voice guidance system with human voice prompts throughout operation
• Automatic wake-up when cover is opened or screen is touched
• Silent mode for nighttime use without disturbing sleep
• Durable handle tested for 300,000 cycles with free-state protection
• Long battery life: 4 AA batteries last 1.5-2 years
• Emergency USB power supply for low battery situations

• US T1 microsecond chip with self-learning fingerprint algorithm
• AI-powered fingerprint recognition improves sensitivity with use
• High-performance processor with low power consumption design
• Automatic locking and anti-trailing protection