This thesis looks into types of alarm systems for technical security. It focuses on basic elements of break-in alarm systems. Elements of the system are listed and described. The topic on alarm message transfer to security control center is especially important. Because of big differences in price and reliability between different message transfer paths, itself is great attention in choosing the right. Common paths are listed and described in the thesis. At the end of the thesis processes of alarm system setup are described on practical cases of a residential house and a banking branch office.