# How are devices counted?

A device is a host running the NetSenX agent. One agent on a SPAN or TAP port monitors a whole network segment and counts as one device.

FAQ: [Small business monitoring](https://netsenx.com/en/faq/smb) · https://netsenx.com/en/faq/how-are-devices-counted

## Read next

- https://netsenx.com/en/ndr-for-small-business
- https://netsenx.com/en/pricing

## Related questions

- [Is a free open-source security stack enough for a small company?](https://netsenx.com/en/faq/is-a-free-open-source-security-stack-enough-for-a-small-company)
- [How much effort does it take to run a self-hosted open-source monitoring stack?](https://netsenx.com/en/faq/how-much-effort-is-a-self-hosted-open-source-monitoring-stack)
- [Do we need both host-based and network-based intrusion detection?](https://netsenx.com/en/faq/do-we-need-both-host-and-network-intrusion-detection)
- [What is detection-as-code, and does a small company need it?](https://netsenx.com/en/faq/what-is-detection-as-code-and-does-a-small-company-need-it)
- [Can a team without security specialists run NDR?](https://netsenx.com/en/faq/can-a-team-without-security-specialists-run-ndr)
