First, you’ll need to get SSH access to your server: https://support.hostifi.net/en/articles/3437198-how-to-ssh-or-sftp-into-your-unifi-server

 

Log in via SSH, then use wget to download the script from GitHub:

wget https://raw.githubusercontent.com/HostiFi/python-unifi-device-counter/master/unifi-device-count.py

 

Run the script:

python unifi-device-count.py

 

It will output the UniFi device count to the terminal.

 

Alternatively, you can check UniFi device count from network.unifi.ui.com:

https://tran-technology.com/check-unifi-device-count-from-network-unifi-ui-com