PRTG Network Monitor

PRTG Network Monitor from Paessler licenses by sensor rather than by device, which is the first thing to understand about its pricing. A sensor is a single monitored aspect, so one server might consume several sensors covering CPU, memory, disk and a service check.

Paessler publishes both the sensor counts and practical device guidance for each licence, which removes the usual guesswork. PRTG 500 is 200 dollars per month paid annually and is described as enough to monitor multiple aspects of 50 devices. PRTG 1000 is 358 dollars per month for around 100 devices, PRTG 2500 is 742 dollars per month for around 250 devices, PRTG 5000 is 1,300 dollars per month for around 500 devices, and PRTG 10000 is 1,642 dollars per month.

Coverage spans the infrastructure a mixed environment actually contains: cloud computing services monitored from anywhere, all types of servers for availability, accessibility, capacity and reliability, and the entire local network including workstations, routers, switches, servers and printers. SNMP support extends monitoring to a diverse range of devices without bespoke integration.

Multiple user interfaces are provided, including a web interface supporting bulk editing across many objects at once, which matters when a monitoring estate reaches a scale where per object configuration becomes impractical.