With the Smart400 app, you can connect easily on one or more of your DA400sAfter defining your DA400 list and password, a simple clic puts you in communication with the selected DA400 wherever it is in the world.No more opening your internet browser and entering a passwordYou can directly open a door, change the rights of a user, block the user or use all the functionality of your DA400.In addition, installing your application gives you a badge virtual which allows you to record on a DA-5003 / DA-5013 reader thanks to NFC technology.