Built to Last: The products are mainly made of aluminum alloy with a painting process, so they have high hardness, strong abrasion resistance, good anti-rust performance, and long service life. Multiple Opening Methods: This product provides you with multiple authentication methods (fingerprint, password, IC card, Bluetooth, and key), which improves security and reliability while allowing for easy opening. With it, you no longer have to worry about forgetting your keys and therefore not being able to enter your home. High Security: Compared with traditional mechanical locks, it is equipped with more sophisticated encryption technology (the keypad will be locked for 3 minutes after 5 consecutive incorrect passwords are entered), thus effectively preventing unauthorized intrusion. In addition, this product has a password anti-snooping function and supports fake password operation. It is also possible to set a single password, temporary password, cycle password and permanent password on the application program as needed. Large Storage Capacity: This smart lock can store up to 200 passwords(including passwords, fingerprints, and cards), so whether you use it at home or in the office, you can accommodate multiple people using it at the same time. This is very convenient and efficient. Precise Identification: The product adopts advanced fingerprint identification technology with a rejection rate of less than 0.01%, and it takes only 0.2s to unlock and supports over 100,000 unlocks., Weight: 1.763698096 pounds, Manufacturer: Repomanda