To find a serial number of a Tufin Appliance like T-1100 is quite easy - just have a look at the hardware and you will find this number. But what if there is no physical access to the box itself? You can find out the serial number via console also by using the command
[root@TufinOS ~]# dmidecode -s chassis-serial-number
It sounds easy, and yes - it's easy to get the serial number of a Tufin Appliance using CLI.