Size Name:Big World Smallest Smart cylinder fingerprint door lock electronic door lock cylinder with door knobSmart cylinder lock (adjustable)Innovative cylinder lock safety, refuse all cloning, makes your life far away from troubles!Independent R&D bank level smart security device with international leading fingerprint technique.Product advantagesLock core material: zinc alloyBattery type: 6*AAA battery (product does not contain battery)Unlock mode: password, APP, cardAdapt to the door type: security door, interior door, glass door, etc.Adapt to the thickness of the door: 50-150mmPower input: 3.6V-4.8VNumber of cipher suites: 10 groupsBig (Lock cylinder size)：Suitable for outdoor security doorsSmall (Lock cylinder size)：Suitable for interior wooden doorsIf you have any questions, please feel free to contact us.Product photos are taken in kind.Since the display is different, please refer to the actual product, thank you for your understanding.Quality Assurance: Quality is the most important part. If you are not satisfied with any reason, please let us know that you will receive a full refund or replacement and friendly customer service.Thank you for your sponsorship!I wish you a happy shopping and a happy life!If you encounter any problems while purchasing the product, please contact us and we will be happy to help you!
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