This company offers one of the most affordable, and worthwhile home security systems that I've purchased. I called them, and they gave me the four-one-one on how the system worked. Their system is based around a wireless network that can be installed easily in one day. That way, it eliminates unecessary charges like drilling into walls, which would be shunned in most apartment buildings. My wife was iffy on the wireless safety system, but ADT reviewed the advantages of having this system versus the older. It has been efficient! If you're searching for a security system for your family, at an affordable price, this is it.