Which products do i need to buy for key fob?

I am newbie and want to know a few things. I have key fob to open a door. I want to use a ring instead of key fob. Which products do i need to buy from DT? Also can one ring open a few doors? I know dumb questions but i need to start somewhere.

At first we need to find out what kind of chip it is

If you’re lucky, you might need to enroll your chip on one of the locks.

You misspelled no. And what’s the I infront of that?

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