| License Size | Sensor Limit | Typical Price (Approx.) | Best For | |--------------|--------------|------------------------|-----------| | 500 sensors | 500 | ~$1,600 (perpetual) | Small business | | 1000 sensors | 1000 | ~$2,900 | Midsize company | | 2500 sensors | 2500 | ~$6,500 | Large network | | 5000 sensors | 5000 | ~$11,000 | Enterprise | | XL (10k+) | Custom | Contact sales | Data centers, ISPs |

Understanding how PRTG Network Monitor licensing works is essential for keeping your IT infrastructure online without overspending. Paessler PRTG is a industry-standard monitoring solution, but finding, managing, and activating your license key requires knowing the right steps.

Understanding the PRTG Network Monitor License Key: Setup, Management, and Best Practices

This free license is the PRTG freeware edition. To obtain it, you do not need to enter a special key. Instead, you simply start a 30-day trial of PRTG, and after the trial period ends, the software automatically and permanently converts to the freeware edition with the 100-sensor limit. You can continue using it for free from that point forward.

For environments larger than 10,000 sensors, Paessler recommends or PRTG PLUS with custom pricing [3†L23-L24][5†L4-L9].

: Click on Change License Key . You will need to input two specific pieces of information exactly as they appear in your confirmation email: