1) This is a IP68 Waterproof/ Rainproof access control keypad, can be installed outdoor. High quality material, Touch key-press. 2) Memory capacity: 3000 user cards. Support RFID Card, password, RFID Card + password to open the door. Very easy to program! 3) Full programming from the keypad. Can set management card. Has blue backlight, the digits number can be seen even at dark. 4) Has WG26/34 Wiegand signal input/output, can connect to a extra card reader. Has a door bell button, can connect to a extra door bell. 5) Does not need to connect to computer, item can works alone. Working with DC12V power system.