Ultraloq UL3 Fingerprint and Touchscreen Keyless Smart Lever Door Lock (Satin Nickel) 3-IN-1 FLEXIBILITY: fingerprint + code + mechanical key ULTRALOQ ADVANCED FINGERPRINT TECHNOLOGY: Less than 0.5 second identification, Durable, waterproof and dustproof, Heal broken fingerprint lines, 95 fingerprints NUMERIC TOUCHSCREEN: User defined 4-8 digit codes, Antipeep password, Touch wakeup, 95 codes HIDDEN KEY: Positioned specially on the bottom, keyhole gives extra security in case of keyhole hackers LONG BATTERY LIFE: Up to 8,000 times access. Low battery alarm on OLED and smartphone app SOLID AND RESISTANT: The solid one-piece Zinc Alloy body is completely waterproof and dustproof. Ideal for both interior and exterior doors EASY SETUP AND DIY INSTALLATION. No wiring. No drilling. Fit interior doors prepped with single bore hole and thickness between 1-3/8"~1-3/4". Reversible handle for both left-handed and right-handed doors SMART LEVER LOCK WITH SINGLE LATCH: Not deadbolt. Optional deadbolt cover plate available for replacing existing deadbolts on exterior doors THREE LOCKING MODES: Auto relock, privacy lockout and free passage INTUITIVE OLED DISPLAY: Use touchscreen to simply add or delete user on the device. An OLED screen with intuitive information will walk you through the whole process