PRTG Network Monitor Pricing (2026): Sensor Tiers and Costs

Short answer: PRTG Network Monitor starts at $200 per month paid annually for 500 sensors, or $2,400 for the first year at the published rate. The larger public tiers run to 10,000 sensors. There is also a 30-day unrestricted trial and a freeware edition capped at 100 sensors. Your billable limit is sensors, not users or an exact number of devices. Paessler pricing

PRTG Network Monitor plans and prices

The table reproduces Paessler's public PRTG Network Monitor prices, checked September 27, 2026. Annual totals multiply the displayed monthly amount by 12. They are list-price calculations before any tax, reseller discount or contract-specific adjustment.

The approximate device column is a planning aid, not another license allowance. A switch monitored for interface counters, CPU, memory and several service checks can consume more sensors than a device monitored only for availability. Build a test inventory, add expected growth, and choose the tier from the resulting sensor total. Paessler's license FAQ explicitly says the tiers differ by the number of sensors you can add.

What does a sensor budget cost?

Suppose a team expects 70 devices and, after a trial, measures an average of 8 active sensors per device. That is 560 sensors before headroom, so PRTG 500 would be too small; PRTG 1000 is the first listed tier that fits. At the published rate, its calculated annual price is $4,296. If the team instead configured 12 sensors on each device, its 840-sensor count would still fit PRTG 1000, but leave less room to add equipment.

For 180 devices at 10 sensors each, the estimated 1,800 sensors would fall into PRTG 2500, listed at $8,904 annually. Those figures are examples of license sizing, not a claim that every device needs 8, 10 or 12 sensors. The trial is the place to count real checks and verify whether any features create more sensors than expected. Paessler pricing

Watch out: You cannot stack a PRTG 500 and PRTG 1000 key on one server to get 1,500 sensors. Paessler says one license key applies per server and directs customers to upgrade to a larger tier. Obtain the upgrade calculation and effective date in writing before relying on it for a budget. Paessler pricing FAQ

Free edition, trial and larger deployments

The 30-day trial is listed without a sensor or device restriction. The freeware edition allows up to 100 sensors, which Paessler describes as roughly ten devices. A pilot can exceed the free limit during its trial; a production plan needs an explicit paid tier or a design that remains within the freeware cap. Check what happens to configured sensors at trial expiry before using a trial instance for operational alerts.

Paessler points environments over about 1,000 devices toward PRTG Enterprise Monitor. That is a separate product and does not have a public price in the PRTG Network Monitor table. Request a quote against the actual sensor count and architecture rather than extending the PRTG 10000 rate by assumption. Paessler pricing

Support and costs outside the list price

All PRTG Network Monitor subscriptions include access to software updates, including security fixes, and email support through the ticket system according to Paessler's pricing FAQ. The public price table does not establish a response time for your specific contract, the price of any enhanced support, or a refund term. Ask the reseller or Paessler for those terms and the applicable license agreement.

PRTG Network Monitor runs as a core server with probes, so budget the hosting and operating work alongside the subscription. A paid license does not eliminate server, storage, backup or network-access costs. If topology mapping or a specialized monitoring extension is in scope, verify whether the specific capability is included in the chosen product and quote. Use the network monitoring category overview to set the requirements before buying.

Questions to put on the quote

1. How many sensors does the pilot use at each site, and what growth allowance is realistic?
2. What is the first-year total including tax, channel fees and any required add-ons?
3. How do upgrades, renewals and cancellation work under the offered agreement?
4. What support channel and response commitment are contractually included?
5. If the pilot uses the unrestricted trial, what happens to configuration and alerting at expiration?

For a side-by-side decision, record the same billable unit and support level for every candidate in your software shortlist. A lower quoted monthly number may be a different monitoring scope.

Bottom line

PRTG's public price is unusually straightforward once you know your sensor count: $2,400 a year for 500 sensors at the entry tier, rising through five published tiers. The uncertainty sits in how many checks your environment actually needs and in contract-specific support and renewal terms. Size with a real trial inventory, then request a quote that states the annual total and entitlements.