【Fast Fingerprint Response】Your finger is your key. KUCACCI Security Smart Door Lock recognizes your fingerprint in just 0.1 seconds and unlocks your door in 0.5 seconds. Never need to find for your keys again. 【Double Assurance】With a low battery, smart lock will initiate a low battery alarm and there are 50 times maximum to unlock. When the battery of the keyless entry door lock is powered off, use the backup key or micro USB power bank to open the electronic door locks with deadbolt. Never be locked out. 【Remote Control / WiFi Access】Paired with KUCACCI Gateway (Sold Separately), you can lock/unlock your smart door lock anywhere anytime, set up codes remotely to your visitors and check real-time access logs. 【Easy Installation】 KUCACCI Smart Lever Lock Replaces your existing lever or knob on standard doors with a single hole (1-5/16\" to 2\" thick and 2-1/8\" face bore hole) with just the screwdriver included. No wiring and no drilling. Equipped with professional instructions and videos to complete the self-installation within 5 minutes. 【Excellent Customer Service】KUCACCI keypad deadbolt lock provides 1-year warranty and free life-time technical support for your smart lock. Any question please contact us at any time. › See more product details