metal structure: This electric door lock is made of high-quality metal, with excellent durability and resistance, ensuring long-term reliable performance in residential and commercial applications. The electronic door lock has stable performance: the electronic mechanism provides fast response, low power consumption, and quiet operation. Suitable for buildings, apartment entrances, warehouses, and internal security doors. Fault safety design: operates on a stable power source and has a fault protection mechanism: the door remains locked during power outages to enhance safety. Very suitable for safety critical areas that must be locked during power outages. Narrow frame, space saving structure: The specially designed narrow frame structure makes this door lock suitable for thin door frames, metal doors, wooden doors, and aluminum alloy doors, saving space while maintaining strong locking ability. Easy to integrate with access control systems: Supports integration with keyboards, card , fingerprint access, walkie talkies, and other access control devices, providing flexible solutions for different security requirements., Weight: 0.8598028218 pounds, Manufacturer: Xnuiasqe