someone is on their way in an emergency
All in all, I think that having an ADT box on the outside of my home is a sure way to tell all the opportunist intruders that I'm not messing around when it comes to home security. Granted, it is £25/month, but for that I get piece of mind knowing that if my alarm goes off for any reason, I get police/fire brigade response and I know that someone is on their way in an emergency.
world class service
ADT is the best company when it comes to security. They have a lifetime warranty on all equipment, 36 hour service call response time (try getting those other companies to do that) world class service!!