What is a square socket with a red button in the middle on the bedroom wall of the new house for?

Alarm switch, the function of this alarm switch is to give an alarm when there is danger indoors and go straight to the community security room. When there is an emergency at home, such as a thief breaking in and needing help, as long as you press panic button, the management center can immediately send someone to the scene to help the residents get timely help. When the weak patients in the family are alone at home, the portable panic button can also provide them with additional security.

The keyhole shaped hole under the red button is the reset hole of the switch. The key of some alarm switches is to disarm the alarm. For example, the alarm switches in some high-end apartments. Only after the security guard confirms that there is no situation can the alarm be lifted with the key. Prevent someone from being subdued by the bad guys after calling the police, and remove the alarm switch.

Intrusion alarm system (IAS) is an electronic system or network that uses sensor technology and electronic information technology to detect and indicate illegal entry or attempted illegal entry into fortified areas (including deliberately triggering emergency alarm devices in the face of hijacking or robbery or other critical situations), and processes and sends out alarm information.

Resource intrusion alarm system _ Baidu Encyclopedia?