To date, security market in Russia is in an intermediate state of development, like and starts to move forward and then back out again. In such difficult times is required to make a choice between quality and price of one system or another. Although there is a way to reduce the price and reduce the cost of installation, having a permanent contractor for execution of work. Author: the source for more info. In this photo report presents some examples of works at the professional level with the use of modern tools and materials. Recently, this information is current as large objects and construction sites, as reduces the cost of individual work, and hence on the whole project as a whole. The difference between quality and low quality system is not immediately apparent, rather it generally is not visible on the first and second look, but it becomes clear at the moment when the system should work, unfortunately time to repair and replace if it will remain. But the recession should always rise, so the quality masters of their craft will never disappear and will please connoisseurs