There are only two types of smoke detectors ionization and photoelectric and once you truly understand how they work, everything gets clearer: nuisance alarms, false trips, placement mistakes, and why one detector reacts faster than another. In this episode of The Fire Alarm Insider, I break the science down in plain terms and connect it to real-world installs: what each detector is best at, how each one senses smoke, and the practical placement rules that keep your systems reliable and inspecti
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