Fire alarms are another important security device that helps you to seek protection from fire accidents. Usually fire alarm and fire detectors are sold as one package. Fire alarms help raise a loud noise and alerts you as soon as smoke is deducted by the fire detector. In most cases fire alarm systems act at the instigation of fire detectors and other devices.

The Purpose of Fire Alarms

A Fire alarm helps you to be protected in case of fire breakouts. This device is usually made up of electromechanical or other metals and it will help you to make things better. They create a loud noise and you will be able to evacuate the building through alternative and safe passages created already for this purpose. Fire alarms have helped to save innumerable lives and properties.

Components of a Fire Alarm 

Fire alarms are made of many constituents. They can be categorized into three major units namely control units, fire detectors and alarm signal devices.

Control Units

The fire alarm system is controlled by a fire alarm control panel. Like any other security devices this fire control panel can be referred as the head or brain of the fire alarm signal device. You must primarily use it to decide how your fire alarm or fire detector should operate. Besides this there are two more important units. The fire alarm signal that performs the main function and fire alarm pull station which transmits signals to the fire alarms through pull boxes.

Fire Detectors

Fire detectors come in two types namely smoke and heat detectors.

Smoke Detectors

Smoke detectors can further be divided into two categories namely ionization smoke detectors and photo electronic ionization units. A smoke detector will be helpful to deduct fire even before a fire breaks out. A smoke detector will therefore be able to help you in taking preventive actions at an early stage. Photo electronic ionization detectors can be used in houses while the other category can be used in offices.

Heat Detectors

Heat detectors also come in two types. They are known as fixed temperature and rate of rise. In the first type the device will work if the room temperature reaches an optimal level of 140° F or 195° F. The other device also works on standard temperature levels. However they can very well sense sudden and upward fluctuations of temperature.
This device has a limitation when compared with smoke detectors because heat detectors can only recognize high levels of temperature and it is difficult to save property or people in most cases.

Alarm Signal Devices

Alarm signal devices are of two categories namely audible and visual. The first one

Emits loud noise and alerts you to escape from the fire outbreak. The loud noise may be in the form of bells or speakers or even sirens. Similarly visuals catch your attention by emitting certain types of lights like strobe light. It is also possible to intimate the fire service personnel through the sound.



VESDA by Xtralis very early warning aspirating smoke detection solutions with continuous air sampling provide the earliest possible warning of an impending fire hazard. VESDA ASDs buy time to investigate an alarm and initiate an appropriate response to prevent injury, property damage or business disruption. VESDA detectors have multi-level warnings and a wide range of sensitivity that does not degrade or change over time, so even minute levels of smoke can be detected before a fire has time to escalate. In addition, VESDA systems are manufactured using targeted Six Sigma techniques and ISO 9000 standards and have been certified by regulatory bodies worldwide.

VESDA detectors are available in a variety of models to accommodate a broad range of environments and applications. From small to verylarge, open spaces and from the cleanest to the dirtiest environments, VESDA provides reliable, high-sensitivity, very early warning smoke detection.

Industries and Applications
VESDA ASDs deliver absolute protection across a wide range of industries and applications:

•    Accommodation (Apartments, Hotels, Shops and Offices)
•    Correctional Facilities
•    Clean Rooms
•    Cold Storage
•    Cultural/Heritage
•    Data & Telecom
•    Hospitals and Healthcare
•    Insurance
•    Marine
•    Nuclear Facilities
•    Oil & Gas
•    Portable Switch Rooms
•    Power Generation
•    Records Storage
•    Transportation
•    Wind Power Generation
•    Warehousing

Extending VESDA ASD for Gas Detection and Environmental Monitoring
 VESDA ECO uses an existing VESDA pipe network to actively monitor for gas leaks and continuously ensure air quality. VESDA ECO reliably detects unseen hazards by conditioning or filtering the air to remove moisture, dirt and other particulates.



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