China Smart Door Lock Remote APP Control with Touch Screen Keypad Password Bluetooth Mechanical Key Proximity Card Opening Method

FOUR-IN-ONE SMART DOOR LOCK -- Access by Bluetooth App, M1 Card, Pass code, and key. The auto-lock function would help you if you forgot to lock your door and the anti-peep password function can protect your code from stolenEASY TO INSTALL -- A easy-to-follow instruction would help you to install your smart door lock easier. Door Thickness Request: 38-50 mm.You could adjust the handle as left-side or right-side as your favor.ConVENIENT TO ConTROL -- Through APP, you could check the unlocking records, also you can share the temporary code/ekey with visitors, nannies, house keepers, tenants, guests, etc. It supports for Android 4.3 or iOS 7.0 aboveEMERGENCY BATTERY BACK-UP -- Our electronic door lock would alarm if it is in low battery. You could temporary charging your security lock by power bank, phone charger-any power source with micro-USB port.HOW TO DETERMINE WHETHER THE LOCK FITS YOUR DOOR OR NOT? -- (1)Measure door't thickness; (2)Measure the length of guide plate;(3)Measure the width of the guide plate.If you are unsure or have any questions about our smart door locks, please contact and let us know directly!