Security alarms are systems designed to detect unauthorized entry or potential threats to a property. They typically consist of sensors placed on doors and windows, which trigger an alert when breached. Many modern systems can also include motion detectors and surveillance cameras, providing comprehensive protection for homes and businesses. When an alarm is activated, it can emit a loud sound to deter intruders and alert occupants. Some systems are connected to monitoring services that notify law enforcement or emergency responders. This added layer of security helps ensure a quick response to potential dangers, enhancing overall safety for individuals and their belongings.