【Keyless Entry Door Lock】4-IN-1 Multifunctional smart door lock: Biometric Fingerprint + Keypad Code + IC card + Mechanical Keys, unique design smart door handle. <br><br> 【Big fingerprint recognizer】 Using larger and more precise recognizers can better identify fingerprints. You can input fingerprints according to the prompts in the application (fingerprint information is stored locally in the lock), with a fingerprint recognition rate of up to 99% and can be unlocked within 0.5 seconds;<br><br> 【Easy Installation】No need to adjust the left opening or right opening, no need additional drilling. smart lock design for the standard single hole interior door(Except of the multipoint door), just easily replaces your existing door knob or door lever with a screwdriver. Fits door thickness 1-3/8" to 1-3/4".<br><br> 【High Security】Sleek design keypad door lock with handle uses the high biometric fingerprint sensing technology and unique algorithm saves your information on the local chip to prevent information leaking which providing a higher grade of security and privacy protection for your house, apartment, office, hotel or any other personal spaces.