sifely keyless entry door lock, keypad door lock, keyless door lock, fingerprint door lock, biometric door lock, keypad entry door lock, passcode code door lock, digital smart door lock (smart lock) sifely <b>| sifely smart lock, ahead of the future</b><br><br> sifely developed world’s most advanced smart lock access technology and provide you a secure smart lock solution for your family. replacing your traditional keys with keyless entry by code, fingerprint, fob or smart phone app. best of all, all door locks come with 2 physical lock keys, just in case you aren't entirely ready to ditch your door keys. start your smart home from sifely and welcome to sifely family !<br><br><b>passcode access</b><br> five types of passcode can be generated remotely without internet: timed, permanent, one-time, cyclic and custom. it is a great solution for rental property management, airbnb short-term rental hosts, and self-housing resident. no needed to exchange physical key present at the property. save you tons of time!<br><br><b>3rd gen fingerprint access technology</b><br> secure fingerprint id with our 3rd gen fingerprint access tech. everyone’s fingerprint is unique and no one can steal it from you. a scratch proof, dust proof and waterproof sensor is applied to make unlocking easy and secure. unlimited fingerprints can be enrolled and identifying time less than 0.3 second.<br><br><b>fob integration</b><br> don't want to use a code? no problem, with the sifely app you can use fob to unlock your door. easily integrate durable fobs to let guests or homeowners into a property quickly and conveniently. easily track and revoke fob access through the sifely app.<br><br><b>specifications</b> <br> door lock thickness: 1.37"-1.88" (35 mm - 48 mm) <br> door hole backset: 2.375"-2.75" (60 mm-70 mm) <br> bore hole diameter: 2.125" (54 mm) <br> door lock level: ip54 level door lock. protected against splashing water, suitable for both outdoor and indoor use <br> battery life: guaranteed up to 1 year over 10,000 lock/unlock times <br> battery type: 4 aa alkaline batteries (not included)