
When we think about home security, it's often the full package that comes to mind. The installation, the cost, or the fancy cameras that will catch potential burglars and vandals. But it's also useful to think outside of the box about what you might use individual elements for around the home, whether that's motion sensors, water detectors, or - as we will discuss - contact or entry sensors.
These sensors come will almost all of the best home security systems, even the basic packages, and are incredibly useful when used right. Designed for doors and windows, these two-part devices use a magnet to detect when someone has gained access to your home without your knowledge.