TKS Smart Knob Fingerprint Interior Door Lock

Overview NOTE: This lock is suitable for interior doors only. Upgrade your interior doors with secure, convenient fingerprint access and a sleek design at an affordable price. Perfect for bedrooms, home offices, or internal access control, this smart door knob replaces your standard knob or lever with minimal hassle*. *It is designed for easy retrofit installation, making it suitable for interior doors (30-50mm thick) with a standard 54mm bore hole and 25mm latch hole. Fast & Secure Fingerprint Access Unlock your door instantly with advanced fingerprint recognition. No keys, no codes — just quick, reliable access at your fingertips. Emergency Override Key Comes with a mechanical override key, so you’ll always have a backup option when needed. USB-C Emergency Power Supply Flat battery? No problem. Simply connect a power bank via the USB-C port (5V only) to temporarily power the lock and gain access. App Control via Tuya Smart App (Bluetooth) Easily manage access and settings through the Tuya Smart App. Add or delete users, manage fingerprints, and control your lock from your smartphone (Bluetooth required). Unlike many interior smart locks on the market, this model includes a mechanical override key, giving you a reliable backup option if the batteries go flat or in other unexpected situations. This is a practical feature that many similar interior smart locks do not offer. Requires 1x CR123A batteries to operate. Batteries NOT included. *CR123A battery can be purchased separately. For your safety, always keep an override key accessible outside the room to prevent accidental lock-outs. Please note: we are not responsible for any lock-out situations where an emergency override key is not available. Specifications Backset: 60 or 70mm adjustable. Door thickness: 30-50mm Main bore hole: 54mm Latch hole: 25mm Application: Interior doors only Fingerprint capacity: 30 App: Tuya App (Bluetooth) Power: 1x CR123A (NOT included). Emergency power supply: 5V, USB-C Low voltage alarm: ≤2.7V±0.1V, Beeping 7 times. Mechanical override key x 2 Working temperature: -15~70℃ Finish: Silver or Black Warranty 1-Year warranty from date of purchase Downloads TKS Smart Door Knob User Manual