This high-strength intelligent door lock is made of durable, waterproof zinc alloy panels, making it an ideal choice for improving security in homes and offices. The automatic retraction and ejection latch, paired with a secure encryption chip, prevents jamming and makes it easy to use. The lock can be opened using five methods: biometric fingerprint, password, emergency key, IC card, or the Tuya App. Available in black or silver, this bright door lock is suitable for doors with a 35-90mm thickness. It supports IOS 7.0 or above, Android 4.4, and has a battery life of 12000 times, equivalent to 18 months or more. A 4.2V-6.5V battery powers the lock and can withstand temperatures ranging from -20-65 ℃, with a working humidity of 10%-90%.