539400 Code to detect country and device

I need to be able to detect 1 1 the country a site visitor is viewing from 2 the device they are viewing on - desktop, tablet or mobile I have seen the following resources For the country, a database solution [login to view URL] for detect - this Of course if you have simpler or more effective solutions, present them I need the country code to be avle to display different code to different countries. I want the devices code to either redirect, create links or select specific css for each of the 3 devices.