It may be just that English is not your first language, but that sentence does not make sense!

"ie" means "that is" - so your sentence actually says:

and that is incorrect:

"access through a known website" is not the same as "connect to the internet"

So the first thing that you still need to do is to decide exactly how you want this thing to be accessed!

For example, if you want to access it through a websever, it could look something like this:

                     +--------+
+--------+           |        |
|Your Kit+-----------+        |
+--------+           |        |
                     |        |
+--------+           |  Web   |
|Your Kit+-----------+ Server +<======> Internet
+--------+           |        |
                     |        |
+--------+           |        |
|Your Kit+-----------+        |
+--------+           |        |
                     +--------+

In this case, the links between the webserver and your "kits" don't need to be public, and could use proprietary protocols of your own devising. The Web Server then provides the standard web interface to your clients via the internet.

But, if you want to connect each kit directly to the internet, then you will at least need to implement IP on each kit, and have a Public IP address for each kit.

So, what is it that you actually want to do?

Think carefully, and explain clearly...