A DEF Network company


Fire safety system

Recommended solutions


DEF Fire Eye

Détection par aspiration



• Rail tunnel
• Metro
• Road tunnel
• Navigable waterways

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The DEF Company has outfitted many tunnels for which it has developed and integrated various solutions adapted to the specific needs and constraints of each project. These solutions have been installed in a wide variety of tunnels: rail tunnels, metro tunnels, road tunnels and also navigable waterway tunnels.

Drawing on these numerous and varied project experiences, the DEF Company accompanies its clients in defining and implementing the best solutions.


– Innovative solution
– Smoke and flame detection in addition to conventional fire detection
– Ideal for large volumes and complex environments

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FIRE EYE is a solution for smoke and flame detection by image analysis.
It consists of video cameras loaded with a powerful image analysis algorithm and Visiodef 3D supervision software, enabling easy operation.

The use of this solution is recommended only in addition to conventional fire detection, in particular on sites with complex environments where the so-called “traditional” detection is not optimal in relation to the risk to protect, such as for very high-ceiling rooms where the stratification of fumes occurs well before the ceiling (aircraft hangar, etc.), or premises with very strong ventilation (tunnels, etc.).


Détection de fumée par aspiration

– High sensitivity and early detection
– Accurate location of fire outbreak
– Easy maintenance

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PHENIX/S2H is a suction smoke detection system particularly suitable for monitoring equipment or critical volumes, such as bays or computer rooms.

Its high sensitivity enables early fire detection and offers the operator the possibility of intervening at the earliest.

The flexibility of the tubular network associated with the S2H detector integrated into it enables closer monitoring of the risk and precise localization of the source of a fire.


Logiciel de supervision

– Automatic synchronisation in real time with the panels
– Consistency of guaranteed site data at all times
– OPC solution
– Intuitive 3D graphical interface

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VISIODEF 3D is a supervisor fully compatible with DEF equipment. This software designed and developed by DEF offers real-time automatic synchronisation with the central equipment of the Fire Safety System. Any points added to the control panel loops are automatically created on the supervisor. The consistency of the site data is, therefore, permanently guaranteed between the panels and the supervisor, without any technical intervention from the manufacturer. VISIODEF 3D integrates, among others, an OPC solution, a wide range of graphic customisation and a very intuitive 3D graphical interface for a simplified and efficient localisation. In addition, VISIODEF 3D enables to combine the supervisor with other tasks such as the management of emergency exits, the SSS and doubt removal by camera.

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Related services



Nantes (44)

Supervision of all the buildings of the production site.

Générale de Manutention Portuaire

Le Havre (76)

Detection and extinguishing solutions.

DEF, the leading European manufacturer of fire safety systems, offers a wide range of solutions dedicated to the safety of your site. DEF relies on its network of expert companies to meet all the challenges of any operator, to ensure the protection of people and property.
With DEF, opt for 360 ° safety!
DEF ensures the optimal availability of your Fire Safety System by implementing the resources of a manufacturer, its teams of experts, its certified products, its tested processes and its experience.
Since 1958, DEF has been designing, developing and manufacturing fire detection and fire safety products. Today, its product range integrates related professions and makes it possible to respond to the problems of buildings of very different sizes and types with a solution dedicated to fire safety. DEF offers you to find its products in its catalogue.
Network of expert companies in fire safety