Upgrade your security with the 4-in-1 Smart Black Electronic Door Lock. Designed to provide convenience and safety, it supports multiple access methods: fingerprint, card, password, and mechanical key. Its frosted zinc alloy construction ensures durability and a modern aesthetic, making it suitable for homes, offices, and villas. The lock includes advanced features such as a virtual password for anti-monitoring protection, double-tongue locking for added security, and waterproof construction for resilience in harsh environments. Powered by 4 AAA batteries with a one-year lifespan, it also features a low battery alarm for timely replacements.   Key Features:  • 4-in-1 Access Modes: Unlock with fingerprint, card, password, or mechanical key for flexibility.  • Advanced Security: Virtual password input prevents monitoring and enhances safety.  • Durable Construction: Made from frosted zinc alloy, combining style and resilience.  • Double-Tongue Lock: Automatic and manual locking for enhanced anti-theft protection.  • DIY-Friendly: Adjustable handle direction for left or right-opening doors.  • Low Power Design: Powered by 4 AAA batteries, offering up to one year of battery life.  • Weatherproof Build: Handles high temperatures, vibration, and humidity for reliable performance.  • High Capacity: Supports up to 300 fingerprints, cards, and passwords.   Specifications:  • Material: Zinc Alloy  • Power Supply: 4 AAA batteries (not included)  • Lock Body Dimensions: 240x60x21 mm  • Fingerprint Capacity: ≤300  • Password Capacity: ≤300  • Working Temperature**: -10°C to 60°C  • Humidity: 20% - 93%  • Size: 17.6 x 6 x 0.3 cm  • Battery Life: 1 year with low battery alarm  • Opening Direction: Left/right adjustable
