Keyless Entry Door Lock: The smart lock has a 5 in 1 access method, APP + Fobs + password + key + thumb turn. APP Control & Ekeys: Smart locks can realize APP control, set passwords, manage access rights and view access logs, and can also authorize your family members, guests or tenants to use APP through eKey. 250+ Multiple Passwords: Smart door locks can remotely generate and share permanent passwords, timed passwords, one-time passwords, and recurring passwords. Suitable for families, Airbnb, Motel and different visitors. Remote Control: After connecting to the Veise gateway G2 (sold separately), smart locks can access remotely, log in real-time, work with Alexa and Google assistant, and check the status of the door lock. Smart Lock: Smart deadbolt can be set to lock automatically (1s-900s). It can also be locked by "one-touch lock" via the touch screen keyboard. Veise smart door lock fits on most US standard left-handed and right-handed doors. It is easy to install with just a screwdriver. - User Code: 250 User Codes - Wrong Code Entry Limit: 5 times - Backset: 2-3/8" or 2-3/4" (60 or 70mm) - The hole in the door edge: 1" (25mm) - Door Prep Size: 2-1/8" (54mm) - Door Thickness: 1-3/8" to 2" (35 mm or 50mm) thick - The hole in door frame is drilled: ≥1" (25mm) - 4 AA batteries required - Not included - Water Resistance Leve: IP65 /p