Fire Sensing System

Fire is one of the most hazardous natural forces. Sensing fire and fighting it in the early stages can prevent losses to a great extent. Sensing fire electronically has become one of the most reliable fire-fighting techniques today.

Sensing fire needs reliable smoke/ fire sensors. Thermistors can sense fire depending on temperature increase principle. We can also use opto devices to sense smoke. One of the projects published in EFY Vol.6 used Japanese Figaro TGS gas sensors. Such sensors are expensive and are not easily available.

The system presented here uses the most common yet very reliable bimetallic strip of

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