PRTG Network Monitor 10000 - subscription license (3 years) - 10000 sensors, 1 server installation

Paessler PRTG Network Monitor is a proprietary network monitoring software by Paessler GmbH. It is best suited for small and medium IT infrastructures and offers extensive features for monitoring OT and IoT environments as well. The powerful on-premises monitoring tool runs on Windows servers and is easily scalable.