So far we have not put our physical device documentation online. The API documentation is online in it's entirety, as well as other things we have written.
We support several data collection protocols and integrations of various kinds. The list is not complete, do inquire if you have some specifics.
Data retention policy
More information about data we collect, what it is, how it's used, stored and processed in our Data retention Policy
Technical documentation of hosts we communicate with and the protocols we use. Our Network traffic documentation