What Is a Security System and How Does It Work?

Security systems are designed to protect you and your family from harm in a break-in or dangerous situation, such as fire. Unfortunately, most people have put very little resources into security systems because of a lack of knowledge about how these systems work.

Lack of awareness can cause some degree of fear or anxiety if they suddenly find themselves in one of these situations. Read on to learn more about these helpful devices and their place in home safety today.

What is a Security System?

A security system can be defined as an electronic device or series of devices that detect and respond to unwanted intrusions. Security systems are often used with other physical safeguards such as locks, guards, and fences to protect against potential intruders.

What Is the General Principle of How a Security System Works?

The functioning of any security system depends on its essential components. A security system has three basic features: sensors, a control panel, and an alarm.

The Sensors

The sensors are what pick up any changes in your home or business. They can detect motion,glass breaks, smoke, door or window contacts, or any other device that will send a signal to the control panel. 

Control Panel

The control panel is where all of your sensors connect to it. It has one job – to monitor your sensors’ signals. If it picks up a change in any sensor, it sends an alert to your security company. Your security company then calls you or comes over if you have a monitored system and lets you know there’s been some sort of change at your home or business.


Most alarm systems have two main components: an alarm keypad and sensors. Sensors are usually placed throughout the premises and on windows and doors. For example, sensors detect when a window or door has been opened or broken. When this occurs, the sensor sends signals to the alarm keypad, which alerts the homeowner that there has been an intrusion.

Different Types of Security Systems and How They Work?

Majorly there are two types of security systems. They include:

Surveillance Cameras

Surveillance cameras have been around for decades but have only recently become affordable enough for most people to own. They work by recording activity when they detect motion within their field of view and then saving these recordings on a hard drive connected to your computer or network server.

Once registered, you can review footage either live or after it has been stored. The most significant benefit of using a camera is that it provides 24/7 monitoring without human intervention.

An Alarm System

If someone breaks into your house while you’re away, an alarm system will alert local authorities so they can come to investigate and hopefully catch whoever did it before they get away.

Modern alarm systems also allow you to monitor what’s going on remotely via a smartphone app. Alarm systems typically consist of three components: sensors -to detect intrusion, transmitters -to send signals, and receivers -to notify authorities.

The above systems can either be professionally monitored or self-monitored. A Professionally monitored security system is an alarm system that is professionally installed, monitored, and serviced by a qualified security company. The system sends signals directly to the security company if an intruder is in the house.

In the case of the self-monitored system, signals are not sent to the security company. Alarm systems are set up to alert you via phone call or text message when the alarm is activated or if there is a break-in, then you can now go ahead to inform the police.

Final Thoughts

There’s no denying that home security systems have become an essential part of modern life, and they have basic features that work in a coordinated manner, one sending information to the other.



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