The smoke and fire detection devices are the element of the fire-prevention system which allow one to detect a fire as soon as it breaks out and generally speaking, are electronic devices which communicate with the fire prevention alarm station.
They must be placed on the ceiling, simply because both smoke and fire move upwards.
We can distinguish three categories:
- smoke detectors
- heat detectors
- flame detectors
In all three cases, the detectors have electronic circuits able to restrict false alarms as far as possible.