‎6.1 x 2.55 x 2.36 inches

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🔑【Keyless entry door lock make convenient】The front door lock: Fingerprint + APP + Passcode + Mechanial Key. The fingerprint door lock adopt latest biometric fingerprint access technology, the accurate recognition rate up to 99% and open the door in 0.2 seconds. You can add up to 255 fingerprints and 150 passwords for smart door lock. In addition, you can set the free passage mode and keep it unlocked at any time which is convenient for the children and the elderly to enter and exit freely.
📱【Smartphone control make convenient】You can set a temporary password to share with friends and visitors, check unlock/lock records in real time on your APP. Morever, when the family goes home or the smart lock has an abnormal alarm, your phone will send the message to remind you. In addition, you can add a tuya gateway (not included) to activate remote unlocking (not restricted by region). So you don’t have to worry about the problem of locking and unlocking when you are away.