Are you thinking of installing an external perimeter alarm? Here we will review different types of sensors. In addition, we will talk about other anti-burglary security systems to be installed outside the home.
The internal burglar alarm puts the bad guys on the run. Yes, but wouldn't it be better to be able to put them on the run before they cross the threshold of the house? That's what an external perimeter alarm is for. There are many doubts on this topic, so I thought it might be useful to have a good study. In this article:
- we will review various types of perimeter sensors and try to understand how they work;
- I will try to answer some frequently asked questions ;
- I will tell you about other outdoor anti-intrusion systems that can join the sensors in the "anti-theft mission".
3 types of perimeter sensors
There are so many types of perimeter sensors. I don't want to confuse you by talking to you about a thousand models, instead I want to help you clarify, which is why I have selected three categories in particular: infrared, microwave and underground sensors.
The infrared and microwave perimeter barriers
Under the umbrella of the external perimeter barriers there are:
- sensors that take advantage of infrared technology (technically speaking of PIR sensors or even double PIR sensors) and detect intruders through their body temperature. There are both perimeter curtain sensors and stylus barriers: with “curtain” and “stylus” we mean, so to speak, the shape of infrared rays;
- the microwave sensors that through high frequency waves - I am not explaining the dynamics to avoid being too technical - detect the presence of the intruder.
These systems are usually
installed on doors, windows, balconies, terraces but can also be positioned along the perimeter of the property, for example on gates and fences.
What is meant by "double or triple technology perimeter barriers"?
When it comes to anti-theft systems, we hear of all colors: sensors with double, triple, quadruple technology ... We weren't even in the secret services! In reality, these are simply products that integrate both infrared and microwave systems and that give the alarm only when all the technologies involved detect the presence of an intruder. In this way it is possible to limit false alarms . Many, however, wonder if this advantage is not followed by the disadvantage of reducing the effectiveness of the system: what happens if, for example, the thief covers the sensor with an object, sabotaging the infrared system? Well, the most advanced sensors have an anti-masking or anti-masking function: in short, after a certain number of detections of an unwelcome presence they activate the alarm even if only the microwave system is working.
What I advise you to do to choose the best solution for you is to
ask for the intervention of an installer : for sure a professional will be able to evaluate all the factors in the best possible way and recommend the perimeter protection system that is right for you. Maybe he might suggest you use the third type of sensors I'm about to tell you about ...
The underground perimeter sensors
A separate category is constituted by buried cable burglar alarm systems. How do they work? They are equipped with sensors that detect the
pressure exerted by our "dear" thieves as they pass or the
variations in the electromagnetic field . The main advantage of this solution? The bad guys can't sabotage it. With this system you will catch them by surprise and they will run away!
How to manage a perimeter alarm if you have a dog?
Pets are not compatible with alarms, you know. I tell you right away that there is no solution that will 100% free you from the problem of false alarms, but you can try to reduce it by choosing a "pet immune" perimeter alarm system . There are in fact some types of perimeter sensors that can be adjusted so that the alarm does not trigger below a certain threshold of weight, height or temperature of the intruder. So Fido can run around in the garden without problems.
Other outdoor anti-intrusion systems
Well, now we know just enough about the perimeter sensors to be prepared for the choice. However, if you want alternatives to this type of systems or, even better, complementary elements, you can evaluate at least two other solutions: surveillance cameras and bollards. Let's take a closer look at them.
Surveillance cameras (choose the most technological)
On the market you will find a myriad of outdoor surveillance cameras. I recommend that you choose cameras that allow you
to remotely monitor the outdoors through your smartphone . Here on Windowo you can find
Opera outdoor cameras , which allow you to detect images and sounds with an app to download to your phone. Think that through the app you can also record and photograph images.
Ah, if you have pets, the remotely controlled video surveillance system will also help you check if the alarm has gone off because of your four-legged friend.
Bollards for gutters and balconies: thief, it is better if you turn around!
Even the most determined thieves desist from the risk of getting hurt: this is the message you send them through the
bollards . There are both models to be installed on the gutters, and models for balconies and cornices.
Ok. I'd say we've learned quite a few things at this point to make your home an anti-thief stronghold. You just have to take action!
PS In the Solutions section of the Windowo online store you will find all our
anti-burglary security solutions for doors and windows, an area dedicated to
security gratings and grates and another that collects all the
access control systems.
