{"id":4693,"date":"2026-05-25T11:40:17","date_gmt":"2026-05-25T11:40:17","guid":{"rendered":"https:\/\/dumoseguridad.com\/blog\/tipos-de-alarmas-seguridad\/"},"modified":"2026-05-29T12:21:30","modified_gmt":"2026-05-29T12:21:30","slug":"types-of-security-alarms","status":"publish","type":"post","link":"https:\/\/dumoseguridad.com\/en\/blog\/types-of-security-alarms\/","title":{"rendered":"Types of alarms in Barcelona: a complete guide"},"content":{"rendered":"

Understanding the different types of alarm systems in Barcelona is the first step towards effectively protecting a home, a shop or an industrial unit. Not all systems offer the same level of coverage, and the right choice depends on the type of property, the area and the level of risk. In this guide, we review the main types of security alarms based on how they transmit the alert, the area they protect, their certified security rating and their components, so that you can make an informed decision about which one suits your situation.<\/span><\/p>\n

What are security alarms and what are they used for?<\/b><\/h2>\n

Security alarms are electronic systems designed to detect intrusions, unauthorised movement or emergency situations and trigger an immediate response. Their main function is not only to activate a siren, but also to deter potential intruders before they act, and to quickly alert the property managers or a professional monitoring centre when the threat is real.<\/span><\/p>\n

In Barcelona and its metropolitan area, where high-rise flats, high-street shops, detached houses in areas such as Sarri\u00e0 and Pedralbes, and industrial units in outlying business parks all coexist, each space has its own specific vulnerabilities. An informed choice makes the difference between effective protection and an underutilised investment.<\/span><\/p>\n

Types of alarms based on their alert transmission technology<\/b><\/h2>\n

The way in which an alarm system delivers its alerts is one of the most important factors in assessing its true effectiveness.<\/span><\/p>\n

Alarms connected to a monitoring centre<\/b><\/h3>\n

They represent the highest standard of protection available on the market. When an alert is triggered, the system automatically transmits it to an alarm receiving centre (ARC) that operates 24 hours a day, 365 days a year. Specialised operators verify the signal in real time and, if necessary, coordinate the dispatch of a Keyholding and Alarm Response Service<\/a> or alert the security forces. In Barcelona, this verification process and the speed of the response service across the metropolitan area are crucial: a verified alert triggers a priority response. This type of alarm is the only one recognised by Spanish private security regulations for properties requiring a certified level of protection.<\/span><\/p>\n

Self-managed alarms with mobile alerts<\/b><\/h3>\n

These are systems that notify the user directly via an app when they detect movement, doors being opened or a power cut. Their main advantage is that there is no monthly monitoring fee. Their key limitation is that a response depends entirely on the owner being available and acting in time, which in many cases proves insufficient.<\/span><\/p>\n

Wireless alarms versus wired alarms<\/b><\/h2>\n

Regardless of the method used to transmit alerts, systems are also classified according to how their internal components are connected. Wireless alarms are easier to install without the need for building work and allow the system to be expanded with new detectors at any time, making them very common in flats and premises in central Barcelona where there is a desire to avoid altering the building. Wired alarms offer greater stability, are less susceptible to interference and are more suitable for new-build properties or large-scale installations where continuous signal reliability is critical.<\/span><\/p>\n

Types of alarms according to security level (1, 2, 3 and 4)<\/b><\/h2>\n

In addition to their technology, alarm systems are classified by <\/span>degree of security<\/b>, a scale set out in the UNE-EN 50131 standard that defines the level of protection and resistance to tampering. It is a key criterion, as it determines which system each property requires and, in certain businesses, which system is required by law.<\/span><\/p>\n