【Cylinder Size】Knob Diameter: Outer 46mm / Inner 38mm; Length: Outer 56mm / Inner 57mm Cylinder length: adjustable outside 40mm-55mm / inside 30mm-60mm. Distance from the center of the keyhole to the door frame is greater than or equal to 40mm.Suitable for the thickness of the armored door lock of difference between 50mm-100mm.
【Easy to install and change batteries】Only replace the lock cylinder without changing the original lock body, finish the installation alone without drilling within 3-5 minutes. It is powered by 3 AAA batteries. Please note that the battery is not included in the package.If the battery runs out, it can unlock the lock via the USB spare key. Please note that the USB key does not support charging, only for APP backup power unlock.
【Convenient unlocking methods】Door opening with password, RFID card or App. Storing up to 10 groups of passwords (1 of them with administrator function). You can pair up to 20 cards.Smart lock with temporary password.Apps are available for iOS and Android. With the app you can open/close the door cylinder or make settings and permissions.
【Wifi Control】Unlock the lock remotely via smartphone, check the lock from the App whenever and wherever you are.Record Query, you will always know who opens the door and when.WiFi function require the WiFi bridge.Please note that the gateway must be purchased separately.
【One Year + One Year Extended Warranty】We will provide a money back guarantee if you are not in love within 30 days. If you have any questions about installation, operation, etc., please feel free to contact us.
