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The different parts of a Security System: How it works

Tim Pavlov
The different parts of a Security System: How it works

Let's dive in and explore the different parts of a security system, and how they work together to provide a comprehensive security solution. With rising crime rates and an annual 1 in 36 chance of suffering a burglary in Auckland, there has never been a better time to invest into home security.

Alarm Sensors – intrusion detection

First up, we have alarm sensors – these are the unsung heroes of any security system. They are responsible for detecting any unauthorized entry or movement within the protected area. When someone tries to enter a protected space, an alarm sensor will trigger an alarm, which alerts the rest of the security system. There are different types of alarm sensors available, including but not limited to:

·       Motion detection sensors

·       Glass break sensors

·       Door and window contact sensors

All of these are extremely dependable and cost effective to detect intruders in your house. Using any combination of the three will provide your house with an ever watching system like a spiderweb, detecting any suspicious activity.

Security Cameras – verification and evidence

Next, we have CCTV cameras – the backbone of your security system. With the help of advanced technology, security cameras can capture high-resolution images and videos, which can be accessed remotely through the internet. This enables security personnel to monitor the property at any time, from anywhere, and respond quickly if they detect any unusual activity.

Additionally, security cameras can be used as evidence in case of any criminal activity or incident. Your cameras need to be ideally placed to capture vital features such as:

·       Clothing of the suspect

·       Physical appearance

·       Facial features

·       Car registration plates if visible

·       Items stolen

Because of their ability to gather such concrete evidence, and also be utilised in real time to fight crime, surveillance cameras are a very strong intruder deterrent. Their visual presence alone serves as a psychological reminder that you are being watched. This will make many would-be burglars think twice about attempting to break into your property.

Network router and storage

Then, we have the network router and storage. The router and cables connect the entire system together, sensors and cameras to the central recorder. Your security system can be connected together wired or wireless, or a hybrid configuration.

The recorder is a box usually known as an NVR (network video recorder) for digital cameras, or a DVR (digital video recorder) for analogue cameras. It is responsible for compiling all the footage and storing it on the hard drive included inside.

Remote monitoring – active response

Moving on, we have remote monitoring – this is the active response component of a security system. With remote monitoring capability, you can see your camera footage in real time from anywhere in the world. This means you have instant response to any alerts the system sends out.

You can even sign up to a 24/7 remote monitoring company. This involves trained security personnel who monitor the security system from a remote location. If they see any unusual activity on the camera feed, they can alert you or the authorities, and take the necessary action to ensure the safety and security of the property.

With the power of remote monitoring you can call out police within half a minute of receiving the alert.

Working together: the process

This is how the individual security components come together to form one strong, comprehensive security system:

1)    The alarm sensors or cameras detect an intruder and send an alert

2)    You or a security monitoring service receive the alert and load up your camera feed

3)    The threat is verified and confirmed

4)    Police are called out to the site

5)    Footage from this time is stored to be used as evidence for any police investigation or court proceedings


In conclusion, a security system is an essential component of any property. By using alarm sensors, security cameras, network routers, storage devices, and remote monitoring, property owners can create a comprehensive security solution that provides maximum protection against any potential threats. A solid home security system is the ultimate peace of mind; knowing you and your family are safe no matter what.

Tim Pavlov
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