Can I put a deterrent plate without installing an alarm? 2026

When accessing a property that has some type of security system, it is common to find a plaque warning of its presence. Some people think that with them we deter potential thieves. Others believe that they are being warned.

The truth is that, at a legal level, when an area is under video surveillance, it is mandatory to place a notice due to a possible crime against privacy when capturing images from third parties. In fact, it is illegal to record people in public without their consent.

But, the question is: what happens on the contrary? ¿ Can I place a deterrent plate without having an alarm? ? Let's see it.

What is a deterrent plate

Deterrent plates are signs that are placed in areas that are protected by video surveillance systems or alarms. E s the company itself that places thiswarningwhen we contact a company to install this type of service.

As we mentioned, there is a debate with the presence of this type of posters. The truth is that it is mandatory place them if we are going to install cameras that record third parties.

Of course, the use of the captured images would be limited to guaranteeing one's own safety, and they would have to be deleted within a certain time.

Place a deterrent plate: yes or no?

As for the name “deterrent”, this type of plates are called that because they function as extra protection. If one or more criminals plan to enter your property and come across this sign,It is likely that they will decide to turn back to avoid risking.

There are also people who think the opposite. They think that warning in advance of the presence of an alarm or cameras gives thieves an advantage. If they know what type of security system we have installed, they can resort to different resources to disable them.

In this regard, security experts agree that the deterrent plate is, in the vast majority of cases,very useful for protection.

Because? The truth is that almost all thefts that are committed, at least in Spain, have the characteristic of being completely improvised. That is to say, are carried out impulsively , without having been previously planned.

Therefore, seeing a deterrent plate on the area they intend to enter , can make a difference and lead them to back away and not try to access your home.

That said, it is possible that, although you have considered installing a surveillance system, you have not done so for many reasons. The price, not finding one that suits your needs, or considering that it is not worth it if it is a second residence.

Types of deterrent plates

These signaling elements are mainly classified into three types:

Conventional alarm plates

Signs that warn of the presence of an alarm in the area, but are not linked to any type of company or service.

Alarm panels connected to an Alarm Receiving Center

These other notices indicate the presence of an alarm connected to a ARC, in this case using the brand's corporate identity.

It is important to know that These types of plates are not delivered to the client , but are rented as part of the service provided by the security company.

Video surveillance plate

If your alarm has a camera you will have onevideo surveillance board.Recording involves taking data from third parties, as we indicated at the beginning, so these signs are not purely a deterrent.

These have to provide information about who is responsible for the images , to comply with data protection law. Let's now see the legal possibilities to place a deterrent plate without alarm.

Deterrent plates from security companies

We pointed out at the beginning of the article that, most commonly, these types of posters are provided by companies that carry out the installation of an alarm or video surveillance system.

This would be the case of second and third type of plates mentioned, and the reality is that It is NOT legal to place them unless we have contracted the company's service.

If we did so, we would be incurring three possible crimes :

• Crime against intellectual or industrial property.This is because it could be considered that we are misappropriating a company's image.
• Misuse of registered trademark.Since, in addition, we would be using the name of a company despite not having any type of connection with it, which is also illegal.
• Breach of data protection law.This would only be if a video surveillance deterrent plate was left in place. This would point to the company as responsible for the personal data recorded, something that does not apply if said company does not have any device installed on our property.

Therefore, deterrent plates They cannot be used if you do not have an alarm or cameras installed. However, what happens with free plates?

Conventional alarm deterrent plates

Since these types of posters are obtained on their own and are not linked to any brand, yes it is legal to place them on your property Whether or not you have an alarm installed. No crime would be committed by doing so.

So, can I put a plate without having an alarm?

In conclusion, if you have private property that you want to protect, but you are not going to install any security device, we confirm that you can get a sign that warns of the presence of a conventional alarm on your own.

Remember that as long as it is not linked to any company or brand you can put it as a deterrent measure andYou wouldn't be doing anything illegal.

That said, it is possible that, although you have considered installing a surveillance system, you have not done so for many reasons. The price, not finding one that suits your needs, or considering that it is not worth it if it is a second residence in which you do not store valuables.

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