Which type of alarm system is designed to detect unauthorized entry into a area?

An intrusion detection system is specifically designed to identify and alert users of unauthorized entry into a protected area. These systems employ various types of sensors, such as motion detectors, door and window contacts, and glass break sensors, to monitor for any breaches in security. When an intruder is detected, the system can trigger alarms, notify security personnel, or even initiate a response from law enforcement.

In contrast, fire alarm systems focus on detecting smoke or heat to warn occupants of a fire, environmental monitoring systems track conditions like temperature or humidity to prevent damage, and home automation systems control smart devices in a home but do not specifically monitor for unauthorized access. The unique function of an intrusion detection system makes it the best choice for protecting against unauthorized entry.