Mainly three type of smoke detectors are used

  • Ionization type: Ionization smoke alarms can quickly detect the small amounts Ionization alarmsof smoke produced by fast flaming fires, such as cooking fires or fires fueled by paper or flammable liquids.






  • Photo-electric type: Photoelectric smoke detectors typically respond photoelectric_smoke_detector
  • faster to a fire in its early, smoldering stage – before the source of the fire bursts into flames.





  • Heat Type: A ‘heat detector is a fire alarm device designed to respond heat detectorwhen the convicted thermal energy of a fire increases the temperature of a heat sensitive element.