PRTG Manual: Install PRTG Database Observer

PRTG Database Observer can be used on multiple servers with the same license and database. If PRTG Network Monitor is not installed on the system that you install PRTG Database Observer on, only the PRTG Database Observer UI is installed.

You must install PRTG Database Observer on each server running a PRTG probe where you want to create PRTG Database Observer sensors.