Check out the following informative info-graphic by Monitronics.com about how home security alarm monitoring works. More than $20 billion is spent annually in the USA on home security equipment and alarm monitoring services. Between 15 to 20 percent of all American households have monitored home security, and the average household with an alarm system spends $850 to acquire it. Here’s the step-by-step process detailing how alarm monitoring really works.
Source: Monitronics.com – How Does Alarm Monitoring Work?