MULTIPLE WAYS TO UNLOCK ---- 5-in-1 Keyless Entry Smart Door Lock: Ergonomic Fingerprint Sensor + Custom Passcode + 2 Smart Key Cards + 2 Mechanical key + TTlock App Control. Never worry about forgetting your keys and lock yourself out. Auto-lock is enabled in case you forget to lock the door on the way out. HIGH-SAFETY ---- Smart door lock with handle has only 1 main account, you can let your guests, friends or housekeepers to open your door at the time you want by generating permanent, timed or customized passcode. Never worrying about lost or stolen keys anymore. FUNCTIONAL & DURABLE ---- This Bluetooth door lock is made of zinc alloy, suitable for harsh environments (Waterproof Level: IP65; Operating Temperature Range: -20158). Widely compatibility for 150+ passcodes, 250+ fingerprints, 1000+ IC cards and unlimited passwords, Enter your home within 0.2s by using fingerprint, getting rid of forgetting the keys. REMOTE CONTROL ---- Paired with WiFi Gateway, you can lock/unlock your smart door lock anywhere anytime, set up codes remotely, change codes remotely, and check real-time access logs,etc. Note: if the wrong password or fingerprint are used to unlock more than 5 times, it will be locked up for 5 minutes unless you use the key or administrator's TTLock APP to unlock.Very useful if you are managing multiple locks. (Gateway will connect to any nearby locks) 15-MINUTE INSTALLATION ---- Easy to install with just a Phillips screwdriver. No extra drills required. No locksmith required. Fit for most standard door and door handle is reversible for both left and right handed doors. Size requirements: door thickness of 1.5in / 38mm.