Security/alarm system (Milan)

Hi everyone, i'm planning to get a security/alarm system installed at my flat. I know there are many different types of kits being sold online but i wanted to talk to an expert and get some more info in order to understand which one would best suit my need.

Does anyone know a shop/store in Milano where they sell such systems and could help me with my questions? Has anyone had a similar search before? Any idea would be well appreciated.