4-IN-1 PERSONALIAED UNLOCK: The Electronic Door Lock built with multiple unlock ways.Code and Smart phone(E-key +Share Password),ALEXA(need extra gateway,sold separately) and Key.Lock Unlock Anywhere and Anytime.Smart control via free App “TTlock”.Compatible with door thickness of 1.4 inch to 2.2 inch.
SAFE AND SOUND SMART LOCK: Front Door Lock provide up to 5000 openings.Long life with intelligent low voltage alarm when the voltage is lower than 4.6V. For security reason, it will automatically lock for 5 minutes when enter the password incorrectly more than 5 times.
PREMIUM ZINC ALLOY AND EASY TO INSTALL: Digital door lock made of Zinc Alloy. Fits most standard residential door (door thickness of 1.4 inch to 2.2 inch), Compatible with exterior doors where keyed entry,very easy to install with just a screwdriver.