Passwords Smart Lock Cylinder Door Hardware Smart Lock Locks Automatic Locking IC NFC Card Function Keyless Splash-Proof Adjustable Cylinder Smart Home Systems

IC/NFC Card Tap-and-go convenience;Tuya App Remote control, guest access, and activity logs;Mechanical Key Trusted backup override. Secure Bluetooth communication for real-time monitoring, customizable schedules, and one-touch sharing of digital keys. High-Security Adjustable Cylinder;C-grade anti-drill core with adjustable length to fit any standard door (35-45 mm).Emergency Power Supply;External USB power-bank port to revive a dead battery in seconds..syi