Fire destroys the property and sometimes lives also. Hence an early warning system of the impending fore is of very great value, it helps us to vacate personnel and valuables from the affected premises and take effective measures in putting out the fire.

Fire Alarm System consist of an Electronic or Microprocessor Controlled Panel connected to Smoke Sensors, Heat Sensors, Fire Call Points, Gas leak detectors and Sounders, by a special fire resistant (HFFR) Cables.

The Smoke Sensors give a trigger signal to the Fire Alarm Control Panel, when smoke of considerable intensity enters them. On receiving this signal, the fire control panel triggers an alarm through the sounders and also gives visual indication of the location, where a fire has occurred.

The smoke can be detected by Smoke Sensors, which are classified as follows.