A good intruder alarm isn't just a siren: it's a system that detects, deters and alerts. Knowing its parts helps you choose the right solution and avoid annoying false alarms.
The control panel
It's the "brain" of the system: it receives signals from the sensors, manages zones and partitions and triggers the alerts. Modern panels are managed via an app and send real-time notifications.
Motion and perimeter protection
Motion sensors detect movement indoors (dual-technology infrared + microwave models reduce false alarms from pets or curtains). Perimeter protection — magnetic contacts on doors and windows, shutter sensors, external beams — acts before the intruder gets in, the most effective defence.
Sirens and diallers
The self-powered external siren deters and signals; the GSM dialler alerts you or a monitoring centre even if the phone line is cut. A backup power supply ensures operation during blackouts.
Wired or wireless?
During construction or renovation, wired is best — maximum reliability with no batteries in the sensors. On existing properties, wireless with encrypted, supervised communication avoids building work. Mixed systems are often the answer.
Reducing false alarms
Correct installation makes the difference: sensor positioning, sensitivity tuning and partitions designed around the occupants' habits. This is where relying on a professional really counts.
Oscar Impianti Elettrici designs and installs tailored alarm systems throughout Italy, with a specialised team that has been working in the security sector for years. We offer competitive and often negotiable prices, maximum flexibility for every client need and 24/7 support. Always free quotes. Discover the security service.