Terms

Placeholder — required before launch, and your payment provider will ask for it.

Points these terms will need to cover

One licence activates one appliance; moving hardware is permitted.
Subscription term, renewal and cancellation.
That the software is a detection aid, not a guarantee against intrusion.
The customer is responsible for deploying it only on networks they own or are authorised to defend.
Limitation of liability and warranty disclaimers.

Have this drafted or reviewed by someone qualified — especially the authorised-use clause, which matters for security tooling.