To get a quick overview of all of your Access Controllers you can check the Devices page. From here you'll be able to see details about all of the Access Controllers in your org like the status and serial number.
- You must be logged in with a user account with Access Admin privileges
Select Admin in the menu on the left then select Devices in the submenu. This screen shows you all Access Controllers that are associated with your organization.
From this page, you can also perform quick actions by selecting the ellipsis ⋮ icon: