Paessler PRTG Network Monitor

Paessler PRTG Network Monitor tracks systems, devices, network traffic, applications, and other infrastructure metrics from an on-premises installation on Windows servers. Its more than 250 preconfigured sensors each measure one or more aspects of a device. Teams can use customizable alerts, scheduled reports, distributed monitoring, and dashboards that show live status. Paessler also lists adaptive AI-based anomaly detection and sensor recommendations. Alerts can use email, SMS, webhooks, or mobile notifications; webhooks can connect to Slack and Microsoft Teams. An API provides access to monitoring data and supports custom features. Free iOS and Android apps display monitoring data and send push notifications, but do not support cluster setups. The free edition allows up to 100 sensors, about 10 devices. Paid plans start at $200/mo billed annually, with a 30-day trial. Each server accepts one license key, so license sizes cannot be combined on a single server.

PRTG combines infrastructure monitoring, alerts, reports, and an API in an on-premises Windows server product. Check its one-license-key-per-server rule and cluster limitation for mobile apps against your setup.

PRTG is intended for small and medium IT infrastructures, with features for OT and IoT environments. It may suit teams that want on-premises monitoring and configurable alerts across infrastructure.

Overview

Paessler PRTG Network Monitor is self-hosted software for tracking networks, systems, applications and other infrastructure. It is best suited to small and medium IT environments that can run a Windows server and want monitoring, alerts and reporting in one product. Its sensor-based coverage is broad, but server-level licensing and a mobile-app cluster restriction are important fit checks.

Key features

• Sensor-based monitoring: More than 250 preconfigured sensors measure one or more aspects of a device. This supports monitoring across systems, network traffic, applications and infrastructure, though buyers should estimate sensor needs rather than count devices alone.
• Live status and reporting: Dashboards provide live status information, and scheduled reports help teams review monitoring results over time.
• Alerts and integrations: Customizable alerts can arrive by email, SMS, webhook or mobile push. Webhooks can send notifications to Slack and Microsoft Teams; compatibility also includes ServiceNow, Jira Service Management, PagerDuty and OpsGenie.
• Distributed monitoring and maps: Distributed monitoring and topology maps help teams oversee infrastructure across locations and understand its layout.
• AI-assisted features and API: Paessler lists adaptive AI-driven baselines for anomaly detection and smart sensor recommendations. An API provides access to monitoring data and a way to build custom features.
• Security and upkeep: Component communications use TLS, and interfaces support local and remote access secured via SSL/TLS. Subscriptions include the latest version, new features, security improvements and email support through the ticket system.

Pricing

PRTG has a free tier and paid plans billed annually. The paid prices below are stated as monthly amounts paid annually; the sensor caps, not just approximate device counts, are the key capacity limit.

• Freeware Edition: free, up to 100 sensors and about 10 devices. A sensible starting point for small setups, but the sensor ceiling can constrain coverage as monitoring expands.
• PRTG 500: $200 a year, billed $200 per month paid annually; up to 500 sensors and about 50 devices. This is the entry paid tier for modest environments.
• PRTG 1000: $358 a year, billed $358 per month paid annually; up to 1,000 sensors and about 100 devices.
• PRTG 2500: $742 a year, billed $742 per month paid annually; up to 2,500 sensors and about 250 devices.
• PRTG 5000: $1,300 a year, billed $1,300 per month paid annually; up to 5,000 sensors and about 500 devices.
• PRTG 10000: $1,642 a year, billed $1,642 per month paid annually; up to 10,000 sensors and about 1,000 devices.

A 30-day trial is available. Each PRTG Network Monitor server accepts one license key, so license sizes cannot be combined on a single server. That makes capacity planning particularly important for teams whose monitoring needs sit between tiers or may grow beyond a chosen cap.

Platforms

The core product is an on-premises installation that runs on Windows servers. It also provides web access, an API and free iOS and Android apps for viewing monitoring data and receiving push notifications. The mobile apps do not support PRTG cluster setups. Paessler's Trust Center provides information on SOC 2 Type II, ISO 27001, ISO 9001 and GDPR compliance.

Who it's for

PRTG is a strong fit for small and medium IT teams that want to monitor varied infrastructure from a self-hosted Windows server, with alerts, reports, dashboards and integrations. Its features also address OT and IoT environments. It is a weaker fit for organizations that require cloud-hosted deployment, need to combine license sizes on one server, or depend on mobile apps for cluster monitoring.

Pros and cons

• Pros
  • More than 250 preconfigured sensors cover multiple infrastructure categories, with plan capacity scaling to 10,000 sensors.
  • Alerts span email, SMS, webhooks and mobile push, with integrations including Slack and Microsoft Teams.
  • Live dashboards, scheduled reports, distributed monitoring and an API support both oversight and custom workflows.
• Cons
  • The Windows-server core requires a self-hosted deployment rather than a cloud-only setup.
  • One license key per server prevents combining license sizes, making sensor-capacity planning consequential.
  • Free mobile apps do not support cluster setups, limiting their usefulness for teams monitoring clusters.

Alternatives

Choose ManageEngine OpManager if its free edition's 3-device perpetual allowance better fits a very small installation. Netdata may suit teams that want a free community option capped at 5 active connected nodes and 1 active custom dashboard per room. Consider NetXMS for a free open-source monitoring solution, noting that its Windows server binaries are limited to 250 nodes. Glances is a free open-source system monitoring option whose optional features require extra dependencies. LibreNMS is a free self-hosted network monitoring system, with commercial SLA-backed support and consultancy available through partners. HWMonitor is a narrower alternative for monitoring PC hardware sensors on Windows. For other category-specific options, browse Hardware Monitoring Software, File Integrity Monitoring Software, DNS Monitoring Software, Container Monitoring, Network Performance Monitoring Software and Network Monitoring. AccuBattery and Core Temp are also alternatives to consider.

Verdict

Choose PRTG if your small or medium environment needs broad infrastructure monitoring from an on-premises Windows server, backed by flexible alerting, reporting and API access. Look elsewhere if you need cloud hosting, cluster monitoring through the mobile apps, or the ability to combine license sizes on one server.