2. They may be integrated as a component of a home security system that instantly alerts a user of moving objects in a particular area. Another important part of the home security system is smoke detectors. They detect Carbon Monoxide and Carbon Dioxide in the air. Metal detectors, on the other hand, may not be a part of the home security system, but they are integral to public security. They come in different shapes and sizes and identify threats by detecting metallic items. These devices come with features that allow the system to be further upgraded. If you’d like to have a professional set it up for you or want your system to be hard wired, there are companies that offer services along with customer support. Finally, you could also opt for third party monitoring services, remote access via Internet/SMS, and home automation if offered in the package. It doesn’t matter if this is your first time installing your home security system or you’ve done it countless times, going through the instruction manual is a ‘no brainer’. They are included for a reason and they should be followed if you want everything to run smoothly.