cost home security systems
44. In addition to your eyes, it can scan
your fingerprints or recognize your voice. It's a great choice for people with fat bank accounts who harbor government secrets, but for the rest of us, digital door locks offer a cheaper home security option. Digital door locks can be opened with an electronic "smart key" or a remote, or you can open them by typing numbers
on a pin pad. These locks are almost impossible to pick. ADT Home Security: Is Your Home Protected?American District Telegraph Company, now known as ADT, the number one name in home security was established in 1874 when 57 Baltimore telegraph offices became partners.