Alarmed security bars
protection for windows, vending machines, etc.
Anti-theft for windows, grilles and gratings, protection for vending machines, etc...
Despite their size and thickness, traditional grates for windows, vending machines, etc., can be removed or cut by malicious individuals, and the safety of people or things is no longer guaranteed.
These grates are specifically made to house a sensor cable inside them that detects any attempt to cut, deform, or tear the grate, generating an alarm. The sensor is compatible with any alarm control panel, even existing ones, through an NC contact.
This solution can be used in various situations, both industrial and residential: windows, shutters, ventilation openings, grilles, vending machines, etc.

The sensor is completely insensitive to vibrations: it is immune to false alarms and, while remaining active 24/7, does not interfere with the user’s daily life (it is not sensitive to the presence of plants, the touch of animals, or vibrations from traffic, machine tools, etc.).
Advantages of alarmed grates
- Insensitive to vibrations, therefore without false alarms
- Freedom of movement for pets
- Due to the lightness of the bars, they are suitable for the protection of large industrial windows where traditional grates would be too heavy to install
- Safe: no electricity passes inside
- Alarm active 24/7
- Wide temperature range
- Integrated system, not visible from the outside
Frequently Asked Questions
- Can existing grates be alarmed with this system?
This type of alarm cannot be installed on existing grates.
- Are there any indications on the type of grates that can be alarmed?
They must be custom-made hollow grates. Contact Naria Security for more details.
- How is the sensor connected to the alarm control panel?
Through a normal alarm cable or by interfacing the sensor with a wireless device.
- Is it possible to purchase only the electronic board?
No, we only provide the complete solution.

