Zinc alloy case Silicone button internal potting makes this door lock can be used for a long time outdoors 3 ways to open the door Read card / Enter password / Read card + enter password; You can set the public or private password and the password can be changed which is more secure You can use the keyboard to add and delete 2000 user data; Set the door open delay; Has shortcircuit protectionThe upper light color indicates the working status, and the mediumsized keypad buttons are easy to press correctly; Keyboard backlight allows user to find it at night Easy to install and we have UK DE FR IT ES manual in PDF; The digicode is suitable for office building entrances and apartment doors; IP68 and high temperature resistance make it suitable for outdoor installation Note; for a complete access control system; in addition to the control keyboard; it is also necessary to purchase [Power]; [Electric lock] and [Exit button]; If you want to open the door with the card; you also need to buy the ID cardIt is more recommended to use the DC12V power supply; which is more stable