Fingerprint Unlock with AI Learning: Experience ultra-fast access with a 0.3-second unlock speed using the Swedish FPC fingerprint sensor (DPI 508). Built-in AI self-learning algorithm adapts over time, improving accuracy—even with wet or dry fingers

4-in-1 Keyless Entry: Enjoy flexibility with multiple unlock options: biometric fingerprint, secure passcode, smartphone app, or physical key. Share access with family, friends, or guests, with one-time or scheduled codes

Remote Access & Real-Time Notifications: Built-in 2.4GHz WiFi lets you control your lock anytime, anywhere via the mobile app. Get 24/7 alerts, track unlock records, and manage access remotely—no additional gateway required

Auto Lock & Custom Delay for Peace of Mind: Automatically locks the door after entry/exit, with customizable delay settings. Never forget to lock again—perfect when carrying groceries or leaving quickly

Smart User Management with Voice Control: Manage multiple user profiles directly in the app and assign permanent, temporary, or scheduled access. Works with Alexa & Google Assistant for hands-free voice commands—fully compatible with your smart home

Extended Battery Life: Designed for long-lasting performance, the TCL D1 smart lock runs on 4 to 8 AA batteries, delivering up to 8–12 months of continuous use. Enjoy worry-free operation without frequent battery changes. The app sends real-time low battery alerts, so you're always prepared

Quick & Easy Installation: Install the TCL D1 smart lock in just minutes with a screwdriver—no drilling or wiring required. Fits most standard US doors (1-3/8” to 2-1/6” thickness) with adjustable backset (2-3/8” or 2-3/4”). Step-by-step instructions and tools included for a hassle-free setup.