A security system is a set of devices and measures designed to protect a building or property from intruders, theft, or damage. It typically includes alarms, cameras, motion sensors, and sometimes surveillance monitors or access control devices. The system is designed to alert the property owner or authorities if unauthorized entry or suspicious activity occurs. Security systems can be installed in homes, businesses, and other properties to provide a sense of safety and prevent potential threats.

What is a "security system"?

英語での「security system」の定義と意味

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