TEKXDD Smart Lock Fingerprint Door Lock, Keypad Deadbolt Lock Keyless Entry 【Multiple Ways to Unlock】4-in-1 Keyless Entry Smart Lock: Smartphone App + 2nd Gen Fingerprint ID + Anti-peep Keypad + Mechanical Key. Apple Watch to open without carrying your iPhone. Never fumble for your keys again.【 Share Access Codes via Bluetooth】Quickly and easily share codes for permanent, temporary or scheduled access with friends, family, and people you trust.【 Professional fingerprint recognition】Use semiconductor fingerprint recognition, which is different from ordinary optical fingerprint recognition. The recognition speed is fast, only the living fingerprint is collected, and the fingerprint recognition is more secure, accurate.【 Easy installation】The deadbolt lock is designed to meet industry standards and fits most doors (thickness 35-55mm), comes with parts and instructions, no drilling required, easy to install. You can adjust the direction (left/right) of the operation lock according to the actual situation.【 Wide application scenarios】The smart lock is resistant to high temperature and high humidity, and is suitable for various environments. Perfect for families, companies, villas, hotels, etc. Product Description Just need "One Touch" to wakeup the sensor, unlock and turn the handle in no time. security Rugged professional lock cylinder Security and confidentiality of fingerprint password information Type Micro USB Backup Low battery alarm. Use a power bank for emergency power supply. Visitor Mode Free passage for specific time. No need to verify the user, you can open the door directly. Specifications: Applicable Door Thickness: 35-55 mm Fingerprint Acquisition Time: ≤0.2s Working Temperature: 14°F-140°F Emergency Power Supply: USB Battery: 4 AAA Batteries(not included)