The role of admin user is in three cases in BioStar 1.
1. If an admin user is added to a device, the device menu will be locked unless it is accessed by an admin user.
2. For DoubleMode Option on Operation Mode, if you use 'with Admin' the admin user has to authenticate with a normal user for the door to open.
3. On Door Details you can set the Unlock trigger with admin user. This feature allows the door to remain open during Unlock Time after admin user authentication.