A home security system is a collection of devices designed to protect a residence from intruders and other threats. These systems typically include components such as alarms, cameras, and motion sensors that work together to detect unauthorized access and alert homeowners or authorities. Many modern home security systems can be monitored remotely through smartphones or tablets, allowing homeowners to keep an eye on their property from anywhere. Some systems also offer features like smart locks and video doorbells, enhancing overall security and convenience for residents.