This fire sensor circuit exploits the temperature sensing property of an ordinary signal diode IN 34 to detect heat from fire. At the moment it senses heat, a loud alarm simulating that of Fire ...

This is a simple fire alarm circuit using Germanium Diode and 555 timer. In this circuit Germanium Diode plays very important role in detecting the fire.This is a simple fire alarm circuit using ...

Until recently, standard fire detectors relied on a single sensor to detect the presence of heat or smoke to determine if there was a nearby fire. As many homeowners and facility managers can attest, ...