What optional home security devices are available? Optional home security devices include smoke detectors or alarms as well as battery backups. Certainly smoke detectors are an option that should be considered....
Certainly smoke detectors are an option that should be considered. I know every home in America is required to have smoke detectors, and but most don't do anything but make noise when they go off. No one else knows there is a fire. If you are not in your home, an unmonitored smoke alarm would give your house no protection.
Sirens are another nice add-on. They are generally not included in most do-it-yourself systems.
And in my opinion, one of the critical items needed is a backup battery. If you have a power failure, your security system still needs to work.
There are also devices with transmitters to arm and disarm the system. For example, when you open your garage door with a transmitter, you could disarm the security system with the same transmitter.
