Three Unlocking Methods 
Fingerprint Recognition: Quick and secure access via semiconductor fingerprint sensor (508dpi resolution, stores up to 20 fingerprints).
Mechanical Key: Emergency access using the included physical keys.
App Control: Remote unlocking and management via TUYA-compatible Graffiti App over Bluetooth.
Durable Construction
Crafted from a combination of front ball aluminum alloy and stainless steel for enhanced strength and temperature resistance.
C-Level anti-theft lock core technology ensures high-level security.
Smart Functionality
Manage fingerprints, view unlock records, and enable remote access through the TUYA app.
Three operation modes: Passage (always unlocked), Privacy (locked from inside), and Normal (default).
Rechargeable Battery
Powered by a built-in 400mAh lithium battery with up to 6 months of standby time.
Emergency power via USB Type-C and low battery warning system.
Easy Installation
Installs in minutes with a screwdriver—no wiring needed.
Fits wooden, steel, brass, and composite doors (35–55mm thickness). Compatible with American standard single tongue mortise (60–70mm adjustable).