Fire Safety & Careers : How Does a Smoke Alarm Work?

Published by
Sep 20


A smoke alarm uses a circuit board and works when smoke enters the sensing chamber, setting off a loud, audible tone. Find out the difference between ionization and photoelectric smoke alarms with advice from an experienced fire captain in thisfree video on fire safety. Expert: Captain Joe Bruni Bio: Captain Joe Bruni has over three decades experience as a street firefighter and company officer. Filmmaker: Christopher Rokosz

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1 Response

  1. peterdabest Says:

    thanks

    Posted on September 20th, 2010 at 10:36 am

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