To unpair your device, you need to navigate to that device in the dashboard. In the menu on the left, choose Buildings and click on the Building you would like to unpair the device(s) from.
Go to the tab Devices and click on the device you want to unpair.
On the Settings tab, scroll down and click "Unpair Device".
Press Unpair again on the following screen and you have successfully unpaired your device👏.